Which of the following pain assessment tools is most appropriate for use in primary care for evaluating a patient with suspected neuropathic pain component in chronic lower back pain?
Q32
A 71-year-old woman presents with a 15-week history of fatigue, poor appetite, and 9kg weight loss. She has a history of polymyalgia rheumatica diagnosed 5 years ago, currently controlled on prednisolone 3mg daily. She reports no headache or visual symptoms. Examination reveals temperature 37.4°C, pulse 78 bpm, BP 156/88 mmHg, BMI 21 kg/m², and no temporal artery tenderness. Blood tests show: Hb 108 g/L (normocytic), WCC 7.8 × 10⁹/L, platelets 456 × 10⁹/L, ESR 78 mm/hr, CRP 48 mg/L, albumin 32 g/L. What is the most appropriate initial management?
Q33
A 43-year-old woman presents with a 12-week history of right upper quadrant pain described as dull and constant, rated 6/10 in severity. The pain is not related to eating and is associated with fatigue and night sweats. She takes no regular medications. Examination reveals temperature 37.8°C, pulse 88 bpm, BP 128/82 mmHg, and mild right upper quadrant tenderness without guarding. Murphy's sign is negative. Blood tests show: Hb 118 g/L, WCC 7.2 × 10⁹/L, platelets 388 × 10⁹/L, ALT 42 U/L, ALP 136 U/L, bilirubin 14 µmol/L, CRP 34 mg/L. Urinalysis is normal. What is the most appropriate next investigation?
Q34
A 68-year-old man with COPD on long-term oxygen therapy presents with a 10-week history of worsening fatigue, reduced appetite, and 5kg weight loss. He reports increased breathlessness despite compliance with medications. Examination shows temperature 37.2°C, pulse 96 bpm, BP 142/86 mmHg, oxygen saturation 89% on 2L/min oxygen, respiratory rate 22/min, and cachexia. Chest examination reveals reduced air entry bilaterally with wheeze. What is the most important next investigation to arrange?
Q35
A 52-year-old woman presents with a 16-week history of severe fatigue and widespread pain affecting her neck, back, shoulders, and thighs. Pain is worse in the morning and improves with activity. She reports poor sleep quality, waking frequently. Examination shows widespread tenderness but no synovitis, muscle weakness, or neurological signs. Blood tests show: Hb 128 g/L, WCC 6.2 × 10⁹/L, platelets 242 × 10⁹/L, ESR 8 mm/hr, CRP 3 mg/L, TSH 2.4 mU/L, calcium 2.32 mmol/L, vitamin D 42 nmol/L. What is the most appropriate initial management approach?
Q36
A 64-year-old woman presents with a 14-week history of fatigue and 8kg unintentional weight loss. She describes abdominal discomfort and early satiety. Examination reveals BMI 24 kg/m², pulse 84 bpm, BP 136/84 mmHg, and fullness in the left upper quadrant. Blood tests show: Hb 102 g/L, WCC 68 × 10⁹/L (neutrophils 52 × 10⁹/L, lymphocytes 6 × 10⁹/L, metamyelocytes and myelocytes present), platelets 524 × 10⁹/L, LDH 680 U/L. Blood film shows left shift with basophilia. What is the most likely diagnosis?
Q37
A 34-year-old man presents with an 8-week history of daily fever peaking at 39.2°C, associated with severe night sweats requiring change of bedclothes, and 7kg weight loss. He returned from volunteering in rural India 4 months ago. Examination reveals temperature 38.6°C, pulse 96 bpm, BP 118/76 mmHg, and splenomegaly (4cm below costal margin). No lymphadenopathy. Blood tests show: Hb 118 g/L, WCC 3.8 × 10⁹/L, platelets 142 × 10⁹/L, CRP 68 mg/L. Chest X-ray is normal. Three sets of blood cultures are negative. What is the most appropriate next investigation?
Q38
According to NICE guidance on assessing unexplained weight loss in adults in primary care, which of the following clinical features would warrant a 2-week wait referral specifically suspecting colorectal cancer in a 55-year-old patient with 8kg weight loss over 10 weeks?
Q39
A 46-year-old woman presents with a 15-week history of fatigue and intermittent fevers. She reports joint pains affecting hands and wrists, a photosensitive rash on her face, and oral ulcers. Examination reveals malar rash, synovitis in MCPJs and wrists bilaterally. Blood tests show: Hb 108 g/L, WCC 3.2 × 10⁹/L, platelets 118 × 10⁹/L, ESR 58 mm/hr, CRP 12 mg/L (normal <5). Urinalysis shows protein 2+ and blood 1+. What is the most appropriate next step?
Q40
A 58-year-old man presents with a 12-week history of fatigue and 6kg weight loss. He is a current smoker (30 pack-years) and consumes 30 units of alcohol weekly. Examination shows pulse 92 bpm, BP 142/88 mmHg, mild hepatomegaly (3cm below costal margin), and palmar erythema. Blood tests reveal: Hb 138 g/L, MCV 102 fL, platelets 156 × 10⁹/L, ALT 124 U/L, AST 186 U/L, ALP 142 U/L, GGT 298 U/L, bilirubin 32 µmol/L, albumin 36 g/L. What is the most important next investigation?
Undifferentiated Symptoms UK Medical PG Practice Questions and MCQs
Question 31: Which of the following pain assessment tools is most appropriate for use in primary care for evaluating a patient with suspected neuropathic pain component in chronic lower back pain?
A. Visual Analogue Scale (VAS)
B. McGill Pain Questionnaire
C. PainDETECT questionnaire (Correct Answer)
D. Brief Pain Inventory (BPI)
E. Numerical Rating Scale (NRS)
Explanation: ***PainDETECT questionnaire***
- This is a validated **screening tool** specifically designed to identify **neuropathic pain components** in patients with chronic lower back pain.
- It assesses pain quality through descriptors like **burning**, **tingling**, and **electric shocks**, helping clinicians distinguish between neuropathic and **nociceptive** pain.
*Visual Analogue Scale (VAS)*
- The VAS is a unidimensional measure primarily used to assess **pain intensity** on a continuous scale.
- It lacks the descriptive items necessary to identify the **etiology** or specific **neuropathic features** of the pain.
*McGill Pain Questionnaire*
- This is a comprehensive tool that provides detailed quantitative measures of pain, but it is **time-consuming** and complex.
- It is generally more suited for **specialist pain clinics** or research settings rather than rapid assessment in **primary care**.
*Brief Pain Inventory (BPI)*
- The BPI is excellent for evaluating **pain severity** and the degree to which pain **interferes with function** and daily life.
- While it provides a holistic view of the patient's burden, it does not specifically screen for **neuropathic characteristics** as effectively as PainDETECT.
*Numerical Rating Scale (NRS)*
- Similar to the VAS, the NRS is used to quantify the **subjective intensity** of pain, usually on a scale of 0 to 10.
- It provides no information regarding the **quality or nature** of the pain, making it insufficient for diagnosing a neuropathic component.
Question 32: A 71-year-old woman presents with a 15-week history of fatigue, poor appetite, and 9kg weight loss. She has a history of polymyalgia rheumatica diagnosed 5 years ago, currently controlled on prednisolone 3mg daily. She reports no headache or visual symptoms. Examination reveals temperature 37.4°C, pulse 78 bpm, BP 156/88 mmHg, BMI 21 kg/m², and no temporal artery tenderness. Blood tests show: Hb 108 g/L (normocytic), WCC 7.8 × 10⁹/L, platelets 456 × 10⁹/L, ESR 78 mm/hr, CRP 48 mg/L, albumin 32 g/L. What is the most appropriate initial management?
A. Increase prednisolone to 40-60mg daily for suspected giant cell arteritis relapse
B. Arrange urgent temporal artery biopsy within 7 days
C. Arrange urgent CT chest, abdomen and pelvis to investigate weight loss (Correct Answer)
D. Request temporal artery ultrasound and increase prednisolone to 20mg daily
E. Arrange routine upper and lower gastrointestinal endoscopy
Explanation: ***Arrange urgent CT chest, abdomen and pelvis to investigate weight loss***
- The patient exhibits constitutional symptoms including **significant weight loss (9kg)**, **anaemia of chronic disease**, and **hypoalbuminaemia**, which strongly mandate the exclusion of **malignancy** despite her stable PMR.
- According to **NICE guidelines**, an unexplained weight loss of this magnitude in an elderly patient requires **urgent cross-sectional imaging** to screen for abdominal or thoracic occult cancers.
*Increase prednisolone to 40-60mg daily for suspected giant cell arteritis relapse*
- High-dose steroids are reserved for **Giant Cell Arteritis (GCA)**, which typically presents with **new headache**, **jaw claudication**, or **visual disturbances**, none of which are present here.
- Empirical high-dose steroids can mask symptoms of an underlying **malignancy** and worsen the clinical outcome if the diagnosis is delayed.
*Arrange urgent temporal artery biopsy within 7 days*
- A **temporal artery biopsy** is an invasive diagnostic tool for GCA; however, the clinical examination specifically noted a **lack of temporal artery tenderness** and no cranial symptoms.
- Performing a biopsy is inappropriate when the clinical picture is dominated by **weight loss and systemic symptoms** rather than localized vasculitis.
*Request temporal artery ultrasound and increase prednisolone to 20mg daily*
- **Temporal artery ultrasound** is used as a first-line investigation in many centers for GCA, but it is not indicated as this patient lacks **cranial features** of the disease.
- Increasing the dose to **20mg daily** might treat a PMR flare but does not address the primary concern of potential **malignancy** suggested by the weight loss.
*Arrange routine upper and lower gastrointestinal endoscopy*
- While **gastrointestinal malignancy** is a possibility, a **routine** referral is inappropriate given the **urgent (2-week wait)** nature of significant weight loss and high ESR.
- A **CT scan** provides a much broader initial screen for various primary sites (lung, pancreas, ovaries, renal, colorectal) compared to a specific luminal investigation like endoscopy.
Question 33: A 43-year-old woman presents with a 12-week history of right upper quadrant pain described as dull and constant, rated 6/10 in severity. The pain is not related to eating and is associated with fatigue and night sweats. She takes no regular medications. Examination reveals temperature 37.8°C, pulse 88 bpm, BP 128/82 mmHg, and mild right upper quadrant tenderness without guarding. Murphy's sign is negative. Blood tests show: Hb 118 g/L, WCC 7.2 × 10⁹/L, platelets 388 × 10⁹/L, ALT 42 U/L, ALP 136 U/L, bilirubin 14 µmol/L, CRP 34 mg/L. Urinalysis is normal. What is the most appropriate next investigation?
A. Hepatitis B and C serology
B. Upper gastrointestinal endoscopy
C. Ultrasound scan of the abdomen (Correct Answer)
D. CT chest, abdomen and pelvis with contrast
E. MRCP to assess biliary tree
Explanation: ***Ultrasound scan of the abdomen***- Abdominal ultrasound is the **first-line investigation** for right upper quadrant pain, effectively screening the liver, gallbladder, bile ducts, and kidneys for masses, stones, or abscesses.- The patient exhibits concerning features such as **night sweats**, **fatigue**, low-grade fever, and **raised CRP**, necessitating imaging to exclude occult malignancy, chronic infection, or other structural pathology.*Hepatitis B and C serology*- While **ALT** is mildly elevated, viral hepatitis usually presents with a more significant transaminase rise and is less likely to cause constant localized pain and high inflammatory markers without other liver dysfunction.- Serology does not provide the crucial **structural information** needed to investigate potential masses, abscesses, or biliary pathology indicated by the clinical presentation.*Upper gastrointestinal endoscopy*- This patient's pain is localized to the **right upper quadrant** rather than the epigastrium, making peptic ulcer disease or gastric pathology less probable as the primary cause.- Endoscopy cannot explain the **raised ALP** or constitutional symptoms like night sweats in the absence of typical upper GI symptoms like dysphagia, severe reflux, or upper GI bleeding.*CT chest, abdomen and pelvis with contrast*- Although a CT is superior for staging **malignancy** and providing detailed anatomical views, it involves significant radiation and is typically reserved for after an initial **ultrasound** identifies an abnormality or if clinical suspicion remains high after a normal ultrasound.- Ultrasound is more accessible, cost-effective, and safe as the **initial screening tool** for undifferentiated RUQ pain in a primary care or outpatient setting.*MRCP to assess biliary tree*- **MRCP** is a specialized test for detailed visualization of the **biliary tree** when there is a high suspicion of choledocholithiasis, cholangitis, or primary sclerosing cholangitis.- The clinical picture, including **night sweats** and **raised CRP**, suggests a broader range of pathology, including parenchymal liver disease or an abscess, which is better initially screened via a comprehensive abdominal ultrasound.
Question 34: A 68-year-old man with COPD on long-term oxygen therapy presents with a 10-week history of worsening fatigue, reduced appetite, and 5kg weight loss. He reports increased breathlessness despite compliance with medications. Examination shows temperature 37.2°C, pulse 96 bpm, BP 142/86 mmHg, oxygen saturation 89% on 2L/min oxygen, respiratory rate 22/min, and cachexia. Chest examination reveals reduced air entry bilaterally with wheeze. What is the most important next investigation to arrange?
A. Spirometry to assess COPD progression
B. Chest X-ray to exclude lung malignancy or infection (Correct Answer)
C. CT pulmonary angiogram to exclude pulmonary embolism
D. Sputum culture and blood tests including CRP
E. Echocardiogram to assess for cor pulmonale
Explanation: ***Chest X-ray to exclude lung malignancy or infection***
- In a patient with **COPD** and a significant smoking history presenting with **unexplained weight loss**, **fatigue**, and worsening breathlessness over 10 weeks, **lung malignancy** must be urgently excluded as the primary differential.
- A **Chest X-ray** is the most important initial imaging investigation to screen for suspicious masses, infiltrates, or effusions, which are crucial for detecting potential cancer or severe infection.
*Spirometry to assess COPD progression*
- While useful for monitoring COPD, **spirometry** is not the most urgent investigation for **red flag symptoms** like significant weight loss and cachexia.
- It assesses **airflow obstruction** but cannot diagnose underlying structural pathologies such as a tumor, which is a major concern here.
*CT pulmonary angiogram to exclude pulmonary embolism*
- **CTPA** is primarily indicated for more acute presentations of breathlessness and suspected **pulmonary embolism**, rather than a subacute 10-week history with prominent constitutional symptoms.
- The patient lacks typical signs of **DVT** or acute cardiorespiratory distress that would prioritize a PE diagnosis over potential malignancy.
*Sputum culture and blood tests including CRP*
- These tests are helpful for identifying **infections** and inflammation, but they do not provide the necessary structural information to rule out a tumor in a high-risk patient with **unexplained weight loss**.
- The severity of **cachexia** and weight loss suggests a more serious underlying condition than a typical COPD exacerbation requiring only microbiological and inflammatory markers.
*Echocardiogram to assess for cor pulmonale*
- **Cor pulmonale** is a chronic complication of COPD, but it typically presents with signs of right heart failure, such as **peripheral edema** or elevated JVP, which are not the dominant features in this case.
- An **echocardiogram** would not explain the patient's significant **unexplained weight loss** and cachexia, making it a lower priority compared to urgent imaging for malignancy.
Question 35: A 52-year-old woman presents with a 16-week history of severe fatigue and widespread pain affecting her neck, back, shoulders, and thighs. Pain is worse in the morning and improves with activity. She reports poor sleep quality, waking frequently. Examination shows widespread tenderness but no synovitis, muscle weakness, or neurological signs. Blood tests show: Hb 128 g/L, WCC 6.2 × 10⁹/L, platelets 242 × 10⁹/L, ESR 8 mm/hr, CRP 3 mg/L, TSH 2.4 mU/L, calcium 2.32 mmol/L, vitamin D 42 nmol/L. What is the most appropriate initial management approach?
A. Arrange urgent rheumatology referral for suspected polymyalgia rheumatica
B. Request creatine kinase and consider inflammatory myopathy
C. Initiate trial of prednisolone 15mg daily for 1 week
D. Provide education about fibromyalgia, recommend graded exercise programme and consider amitriptyline (Correct Answer)
E. Prescribe high-dose vitamin D supplementation 20,000 units weekly
Explanation: ***Provide education about fibromyalgia, recommend graded exercise programme and consider amitriptyline***
- The clinical picture of **chronic widespread pain**, **fatigue**, and **non-restorative sleep**, coupled with **widespread tenderness** and crucially **normal inflammatory markers** (ESR, CRP), is highly characteristic of **fibromyalgia**.
- Initial management for fibromyalgia emphasizes **patient education**, **graded exercise programs**, and pharmacological interventions like **low-dose tricyclic antidepressants** (e.g., amitriptyline) to improve sleep and reduce pain.
*Arrange urgent rheumatology referral for suspected polymyalgia rheumatica*
- **Polymyalgia rheumatica (PMR)** typically affects individuals over 50 and presents with pain and stiffness in the shoulder and hip girdles, but it is characteristically associated with **markedly elevated ESR and CRP**, which are normal in this patient.
- While a rheumatology referral might eventually be considered for diagnostic confirmation, it's not urgent and not the initial step when inflammatory markers are normal and the presentation doesn't fully align with PMR.
*Request creatine kinase and consider inflammatory myopathy*
- **Inflammatory myopathies** (e.g., polymyositis, dermatomyositis) are characterized by **objective muscle weakness**, often proximal, which is explicitly stated to be absent in this patient's examination.
- Although **creatine kinase (CK)** is the diagnostic test for muscle inflammation, the lack of muscle weakness and presence of widespread pain without objective signs makes myopathy less likely than fibromyalgia.
*Initiate trial of prednisolone 15mg daily for 1 week*
- **Corticosteroids** like prednisolone are the cornerstone treatment for inflammatory conditions such as **polymyalgia rheumatica**, but they are **ineffective for fibromyalgia** and carry risks of significant side effects.
- Given the **normal inflammatory markers** (ESR, CRP) in this patient, there is no evidence to support an inflammatory diagnosis that would warrant a trial of steroids.
*Prescribe high-dose vitamin D supplementation 20,000 units weekly*
- The patient has **vitamin D insufficiency** (42 nmol/L), but this level is unlikely to cause such severe and widespread pain and fatigue as the primary etiology.
- While correcting vitamin D insufficiency is generally beneficial for overall health, it is a supportive measure and not the primary treatment addressing the **central sensitization** and other complex mechanisms underlying fibromyalgia.
Question 36: A 64-year-old woman presents with a 14-week history of fatigue and 8kg unintentional weight loss. She describes abdominal discomfort and early satiety. Examination reveals BMI 24 kg/m², pulse 84 bpm, BP 136/84 mmHg, and fullness in the left upper quadrant. Blood tests show: Hb 102 g/L, WCC 68 × 10⁹/L (neutrophils 52 × 10⁹/L, lymphocytes 6 × 10⁹/L, metamyelocytes and myelocytes present), platelets 524 × 10⁹/L, LDH 680 U/L. Blood film shows left shift with basophilia. What is the most likely diagnosis?
A. Acute myeloid leukaemia
B. Chronic myeloid leukaemia (Correct Answer)
C. Chronic lymphocytic leukaemia
D. Essential thrombocythaemia
E. Myelofibrosis
Explanation: ***Chronic myeloid leukaemia***
- The clinical triad of **splenomegaly** (fullness in the left upper quadrant and early satiety), massive **leucocytosis** (WCC 68 × 10⁹/L), and a blood film showing a **left shift** with **basophilia** is classic for CML.
- The presence of the full spectrum of myeloid maturation, including **metamyelocytes** and **myelocytes**, further supports the diagnosis of chronic phase CML.
*Acute myeloid leukaemia*
- AML typically presents acutely with features of **bone marrow failure** like severe anaemia, infections, or bleeding, and the blood film would show a high percentage of **blasts** (>20%).
- Unlike CML, AML does not usually present with the full range of maturing myeloid cells (left shift) or significant **basophilia**, but rather a predominance of immature blast cells.
*Chronic lymphocytic leukaemia*
- CLL is characterized by a persistent **mature lymphocytosis** with absolute lymphocyte count typically >5 × 10⁹/L, whereas this patient has a predominant **neutrophilia** and myeloid left shift.
- Physical examination in CLL often reveals widespread **lymphadenopathy** in addition to potential splenomegaly, which is not the primary finding described here.
*Essential thrombocythaemia*
- ET is primarily characterized by a sustained elevation in **platelets** (>450 × 10⁹/L) without a significant increase in the total white cell count or a left shift.
- While this patient has significant **thrombocytosis** (524 × 10⁹/L), the massive **leucocytosis (68 × 10⁹/L)** and myeloid left shift with basophilia strongly argue against ET as the primary diagnosis.
*Myelofibrosis*
- Myelofibrosis typically presents with a **leucoerythroblastic blood film** containing nucleated red blood cells and characteristic **teardrop-shaped erythrocytes** (dacrocytes).
- Although it causes **massive splenomegaly**, it is often associated with significant **marrow fibrosis** and can lead to cytopenias, rather than the massive neutrophilic leucocytosis with full maturation seen here.
Question 37: A 34-year-old man presents with an 8-week history of daily fever peaking at 39.2°C, associated with severe night sweats requiring change of bedclothes, and 7kg weight loss. He returned from volunteering in rural India 4 months ago. Examination reveals temperature 38.6°C, pulse 96 bpm, BP 118/76 mmHg, and splenomegaly (4cm below costal margin). No lymphadenopathy. Blood tests show: Hb 118 g/L, WCC 3.8 × 10⁹/L, platelets 142 × 10⁹/L, CRP 68 mg/L. Chest X-ray is normal. Three sets of blood cultures are negative. What is the most appropriate next investigation?
A. HIV test, hepatitis serology, and autoimmune screen
B. CT chest, abdomen and pelvis with contrast
C. Bone marrow aspirate and trephine biopsy
D. Visceral leishmaniasis serology and PCR (Correct Answer)
E. Tuberculosis interferon-gamma release assay (IGRA) and sputum microscopy
Explanation: ***Visceral leishmaniasis serology and PCR***
- The patient presents with the classic triad of **Kala-azar (visceral leishmaniasis)**: prolonged fever, weight loss, and **splenomegaly**, especially after travel to an endemic area like **rural India**.
- Lab findings of **pancytopenia** (low Hb, WCC, and platelets) and high CRP are characteristic due to splenic sequestration and marrow infiltration; non-invasive **serology (rK39)** and **PCR** are the preferred initial diagnostic steps.
*HIV test, hepatitis serology, and autoimmune screen*
- While **HIV** can present with fever and weight loss, it would not typically cause isolated massive **splenomegaly** and pancytopenia without prominent lymphadenopathy or other opportunistic infections.
- These tests are part of a general **Fever of Unknown Origin (FUO)** workup but are less specific and targeted than testing for an endemic parasite given the clear travel history.
*CT chest, abdomen and pelvis with contrast*
- Imaging would confirm **splenomegaly** and check for occult malignancy or abscesses, but it cannot provide a microbiological or pathological diagnosis.
- It is a secondary investigation in FUO and is less efficient than targeted infectious disease testing for a patient with clear **geographical risk factors** for a specific parasitic infection.
*Bone marrow aspirate and trephine biopsy*
- This is a definitive test that can show **Leishmania amastigotes** (Donovan bodies) directly, but it is invasive and usually reserved if **serology** or PCR is inconclusive or if there's high suspicion of hematological malignancy.
- While highly accurate, less invasive diagnostic methods are typically pursued first in the diagnostic algorithm for suspected visceral leishmaniasis.
*Tuberculosis interferon-gamma release assay (IGRA) and sputum microscopy*
- **Miliary tuberculosis** can cause fever, weight loss, and splenomegaly, but the **normal chest X-ray** and lack of respiratory symptoms make it less likely than a parasitic cause in this context.
- While **IGRA** can detect latent TB, it does not confirm active disease, and **sputum microscopy** is primarily for pulmonary TB, which is not suggested here.
Question 38: According to NICE guidance on assessing unexplained weight loss in adults in primary care, which of the following clinical features would warrant a 2-week wait referral specifically suspecting colorectal cancer in a 55-year-old patient with 8kg weight loss over 10 weeks?
A. Microcytic anaemia with haemoglobin 105 g/L and MCV 72 fL (Correct Answer)
B. Raised inflammatory markers with CRP 45 mg/L and ESR 62 mm/hr
C. New onset constipation and bloating over the same time period
D. Family history of colorectal cancer in father diagnosed at age 68
E. Digital rectal examination showing smooth, mildly enlarged prostate
Explanation: ***Microcytic anaemia with haemoglobin 105 g/L and MCV 72 fL***- According to **NICE NG12** guidelines, a 2-week wait referral for suspected **colorectal cancer** is indicated for patients aged 40 and over with unexplained **weight loss** and **iron-deficiency anaemia**.- The combination of **unexplained weight loss** and **microcytic anaemia** in a 55-year-old patient has a high positive predictive value for gastrointestinal malignancy.*Raised inflammatory markers with CRP 45 mg/L and ESR 62 mm/hr*- While **elevated inflammatory markers** can be seen in malignancy or chronic disease, they are **non-specific** and not a defined criterion for an urgent 2-week wait referral for colorectal cancer.- These markers require further investigation for **infection**, **inflammation**, or malignancy but do not point specifically to the colon.*New onset constipation and bloating over the same time period*- NICE criteria for suspected colorectal cancer prioritize a change in bowel habit toward **looser or more frequent stools**, rather than isolated constipation or bloating.- **Constipation** alone in this age group, even with weight loss, does not meet the specific threshold for an urgent 2-week wait referral unless a palpable mass is present.*Family history of colorectal cancer in father diagnosed at age 68*- A single first-degree relative diagnosed with colorectal cancer over the **age of 60** is considered low risk and does not meet the criteria for urgent referral.- Urgent investigation is usually triggered by symptoms or **stronger hereditary patterns** (e.g., multiple young-onset relatives) rather than a single late-onset case.*Digital rectal examination showing smooth, mildly enlarged prostate*- A **smoothly enlarged prostate** is a common finding of Benign Prostatic Hyperplasia (BPH) and is unrelated to **colorectal malignancy**.- This clinical finding does not explain the patient's **unexplained weight loss** or warrant a referral for suspected bowel cancer.
Question 39: A 46-year-old woman presents with a 15-week history of fatigue and intermittent fevers. She reports joint pains affecting hands and wrists, a photosensitive rash on her face, and oral ulcers. Examination reveals malar rash, synovitis in MCPJs and wrists bilaterally. Blood tests show: Hb 108 g/L, WCC 3.2 × 10⁹/L, platelets 118 × 10⁹/L, ESR 58 mm/hr, CRP 12 mg/L (normal <5). Urinalysis shows protein 2+ and blood 1+. What is the most appropriate next step?
A. Request anti-CCP antibodies and rheumatoid factor
B. Request ANA, anti-dsDNA, and complement levels (Correct Answer)
C. Start prednisolone 40mg daily and arrange rheumatology follow-up
D. Request blood cultures and chest X-ray for fever investigation
E. Arrange renal ultrasound to investigate haematuria and proteinuria
Explanation: ***Request ANA, anti-dsDNA, and complement levels***
- The patient exhibits classic clinical features of **Systemic Lupus Erythematosus (SLE)**, including a **malar rash**, **oral ulcers**, and **photosensitivity**, making **ANA** the mandatory entry criterion for diagnosis.
- Supporting lab findings like **cytopenias**, a high **ESR** with a relatively low **CRP**, and **proteinuria** (suggesting **lupus nephritis**) necessitate testing for **anti-dsDNA** and **complement levels (C3/C4)** to confirm diagnosis and assess disease activity.
*Request anti-CCP antibodies and rheumatoid factor*
- While the patient has **synovitis**, the presence of multi-system involvement (rash, ulcers, renal signs) makes SLE much more likely than **Rheumatoid Arthritis**.
- **Anti-CCP** is highly specific for RA but does not explain the broader symptoms like **leukopenia** or **malar rash**.
*Start prednisolone 40mg daily and arrange rheumatology follow-up*
- Starting high-dose steroids before confirming a diagnosis can mask findings and should be avoided unless the patient is acutely unstable.
- Definitive **serological confirmation** and further investigation of **renal involvement** are required to guide appropriate long-term immunosuppressive therapy.
*Request blood cultures and chest X-ray for fever investigation*
- While fevers require caution, the presence of a **malar rash** and **joint pains** suggests that the fever is a constitutional symptom of **active SLE** rather than an infection.
- These tests may be supplemental, but the priority is establishing the underlying **autoimmune diagnosis** given the multisystem presentation.
*Arrange renal ultrasound to investigate haematuria and proteinuria*
- A renal ultrasound is useful to rule out structural issues, but the priority in this systemic context is identifying **lupus nephritis** via serology and likely a **renal biopsy**.
- Proteinuria and hematuria in a young woman with a **malar rash** are highly suggestive of **glomerular disease** rather than structural abnormalities detectable by ultrasound.
Question 40: A 58-year-old man presents with a 12-week history of fatigue and 6kg weight loss. He is a current smoker (30 pack-years) and consumes 30 units of alcohol weekly. Examination shows pulse 92 bpm, BP 142/88 mmHg, mild hepatomegaly (3cm below costal margin), and palmar erythema. Blood tests reveal: Hb 138 g/L, MCV 102 fL, platelets 156 × 10⁹/L, ALT 124 U/L, AST 186 U/L, ALP 142 U/L, GGT 298 U/L, bilirubin 32 µmol/L, albumin 36 g/L. What is the most important next investigation?
A. Abdominal ultrasound scan (Correct Answer)
B. Upper gastrointestinal endoscopy
C. CT chest, abdomen and pelvis
D. Liver fibroscan and hepatitis serology
E. Colonoscopy
Explanation: ***Abdominal ultrasound scan*** - The patient presents with clear signs of **chronic liver disease** (palmar erythema, hepatomegaly) and findings suggestive of **cirrhosis** (macrocytosis, mild thrombocytopenia, AST:ALT ratio >1, elevated GGT). - Given the significant **weight loss**, history of **alcohol misuse**, and **smoking**, there is a high suspicion for **hepatocellular carcinoma (HCC)**, making an **abdominal ultrasound** the most important initial investigation for screening liver lesions. *Upper gastrointestinal endoscopy* - While useful to screen for **esophageal varices** in patients with established **cirrhosis**, it is not the primary investigation for systemic symptoms like **weight loss** or to evaluate for a **liver mass**. - It would be prioritized for acute GI bleeding or direct suspicion of upper GI malignancy, which are not the leading concerns here. *CT chest, abdomen and pelvis* - A **CT scan** provides detailed anatomical information, but an **abdominal ultrasound** is generally the **first-line, cost-effective, and less invasive** screening tool for suspected liver lesions. - It is usually reserved for further characterization of abnormalities found on ultrasound, or for **staging of confirmed malignancy**, not as the initial screening step. *Liver fibroscan and hepatitis serology* - **Liver fibroscan** assesses **liver stiffness** to quantify fibrosis, and **hepatitis serology** identifies viral causes of liver disease (e.g., HBV, HCV). - These investigations are crucial for full liver assessment but do not directly address the urgent need to **exclude a malignancy** given the patient's **weight loss** and risk factors. *Colonoscopy* - **Colonoscopy** would be indicated if there were symptoms such as altered bowel habits, rectal bleeding, or unexplained **iron-deficiency anemia**, suggesting **colorectal cancer**. - The patient's clinical presentation, including pronounced **liver function test abnormalities** and physical signs of liver disease, points much more strongly towards a **primary liver pathology**.
