Cardiology UK Medical PG Practice Questions and MCQs
Practice UK Medical PG questions for Cardiology. These multiple choice questions (MCQs) cover important concepts and help you prepare for your exams.
Cardiology UK Medical PG Question 1: A 42-year-old woman presents with fatigue, muscle aches, and widespread pain. She has multiple tender points but normal inflammatory markers. Sleep is poor. What is the most appropriate initial treatment?
- A. NSAIDs
- B. Prednisolone
- C. Pregabalin (Correct Answer)
- D. Methotrexate
- E. Physiotherapy alone
Cardiology Explanation: ***Pregabalin***
- **Pregabalin** is a **gabapentinoid** drug that modulates voltage-gated calcium channels, decreasing the release of excitatory neurotransmitters involved in central pain sensitization characteristic of **fibromyalgia**.
- It is one of the FDA-approved medications (along with duloxetine and milnacipran) specifically recommended for managing the **widespread pain** and associated symptoms like **poor sleep** in fibromyalgia.
*NSAIDs*
- Non-steroidal anti-inflammatory drugs (NSAIDs) target inflammatory pain, which is generally absent in **fibromyalgia** as evidenced by **normal inflammatory markers**.
- NSAIDs are usually **ineffective** in treating the centralized pain and hyperalgesia seen in this condition, making them a poor choice for monotherapy.
*Prednisolone*
- **Prednisolone** is a powerful corticosteroid used for conditions driven by **inflammation** (e.g., active arthritis or vasculitis).
- The patient has normal inflammatory markers and a clinical presentation consistent with a non-inflammatory central pain syndrome, making steroids **inappropriate** and potentially harmful.
*Methotrexate*
- **Methotrexate** is a **Disease-Modifying Anti-Rheumatic Drug (DMARD)** indicated for managing autoimmune inflammatory diseases like **Rheumatoid Arthritis** or **Psoriatic Arthritis**.
- Since the patient does not show evidence of an inflammatory or autoimmune joint disease, this immunosuppressant drug treatment is **not warranted**.
*Physiotherapy alone*
- While non-pharmacological therapies like **aerobic exercise** and **Cognitive Behavioral Therapy (CBT)** are essential long-term components, they are often insufficient alone to manage severe initial symptoms, particularly **poor sleep** and disabling pain.
- Initial treatment typically requires a combination of pharmacological agents (like **Pregabalin**) combined with supportive non-pharmacological management for optimal symptom control.
Cardiology UK Medical PG Question 2: A 57-year-old diabetic man presents with a non-healing foot ulcer for 3 months. Ankle-brachial pressure index is 0.3. What does this indicate?
- A. Normal arterial supply
- B. Mild arterial disease
- C. Moderate arterial disease
- D. Severe arterial disease (Correct Answer)
- E. Venous disease
Cardiology Explanation: ***Severe arterial disease***
- An **Ankle-Brachial Pressure Index (ABPI)** of **0.3** indicates severely reduced blood flow to the lower extremities.
- This severe reduction in arterial supply is consistent with the patient's **non-healing foot ulcer** and diabetes, a major risk factor for peripheral arterial disease.
*Normal arterial supply*
- **Normal ABPI** values typically range from **0.90 to 1.30**, which is significantly higher than the given 0.3.
- An ABPI of 0.3 suggests profound compromise, far from normal blood flow required for tissue healing.
*Mild arterial disease*
- **Mild arterial disease** is generally indicated by an **ABPI between 0.70 and 0.90**.
- An ABPI of 0.3 is well below this range, signifying much more severe impairment of arterial flow.
*Moderate arterial disease*
- **Moderate arterial disease** corresponds to an **ABPI between 0.40 and 0.69**.
- The patient's ABPI of 0.3 is lower than this range, indicating a more critical level of arterial obstruction.
*Venous disease*
- The **ABPI** is a diagnostic tool primarily used to assess **arterial insufficiency**, not venous disease.
- While venous disease can cause ulcers, an ABPI of 0.3 specifically points to significant **peripheral arterial disease** as the underlying cause.
Cardiology UK Medical PG Question 3: A 43-year-old man presents with recurrent episodes of severe sweating, palpitations, and headache. His BP during episodes is 240/130 mmHg. What is the most appropriate preoperative management?
- A. Beta-blockers only
- B. Alpha-blockers only
- C. Alpha-blockers then beta-blockers (Correct Answer)
- D. ACE inhibitors
- E. Calcium channel blockers
Cardiology Explanation: ***Alpha-blockers then beta-blockers***- The clinical presentation (paroxysmal **hypertension**, headache, palpitations, and sweating) is highly suggestive of a **pheochromocytoma**.- Preoperative stabilization requires adequate **alpha-adrenergic blockade** first (e.g., phenoxybenzamine or doxazosin) to control blood pressure and allow for volume expansion, followed by **beta-blockade** to manage tachycardia or arrhythmias.*Beta-blockers only*- Using beta-blockers alone is contraindicated as it causes **unopposed alpha-adrenergic stimulation**, leading to severe **vasoconstriction** and potentially a fatal hypertensive crisis or pulmonary edema.- Beta-blockers are only instituted *after* achieving complete alpha-blockade and adequate blood pressure control, typically to manage persistent tachycardia.*Alpha-blockers only*- While alpha-blockade is the essential first step, it is usually insufficient for full preoperative management, as patients often require subsequent **beta-blockade** to control catecholamine-induced tachycardia and arrhythmias.- Complete preparation requires both classes of medication to fully mitigate cardiovascular risk before surgery.*ACE inhibitors*- These medications target the **renin-angiotensin-aldosterone system** and are ineffective at blocking the direct severe vasoconstrictive effects of excessive circulating catecholamines.- They may also increase the risk of severe **hypotension** after tumor removal if the patient is relatively volume-depleted from prolonged vasoconstriction.*Calcium channel blockers*- While some CCBs (like nicardipine) can be used as **adjuncts** for blood pressure control, they cannot replace the mandatory initial step of **alpha-adrenergic blockade** and volume repletion.- They do not address the need for full adrenergic receptor blockade necessary to prevent cardiovascular catastrophe during surgical manipulation of the tumor.
Cardiology UK Medical PG Question 4: A 41-year-old man presents with progressive weakness in his hands and arms over 12 months. He has muscle fasciculations and hyperreflexia. EMG shows both acute and chronic denervation changes. What is the prognosis?
- A. Excellent with treatment
- B. Good with supportive care
- C. Variable depending on subtype
- D. Poor with 3-5 year survival (Correct Answer)
- E. Stable with medication
Cardiology Explanation: ***Poor with 3-5 year survival***
- The presentation with **progressive weakness**, **muscle fasciculations** (lower motor neuron sign), and **hyperreflexia** (upper motor neuron sign), along with mixed **acute and chronic denervation** on EMG, is highly characteristic of **Amyotrophic Lateral Sclerosis (ALS)**.
- **ALS** is a rapidly progressive neurodegenerative disease, and the typical survival time from diagnosis is **3 to 5 years**, often due to respiratory failure.
*Excellent with treatment*
- **ALS** is an incurable disease, and current treatments such as **Riluzole** or **Edaravone** only offer a modest slowing of disease progression or symptom management, not an excellent prognosis.
- There is no known treatment that can halt or reverse the neurodegeneration characteristic of **ALS**.
*Good with supportive care*
- While **supportive care** (e.g., respiratory support, physical therapy, nutritional guidance) is essential for managing symptoms and improving quality of life in **ALS**, it does not alter the underlying progressive and fatal nature of the disease.
- The relentless degeneration of motor neurons continues despite comprehensive supportive measures, leading to eventual paralysis and death.
*Variable depending on subtype*
- While there are different clinical presentations (e.g., bulbar vs. limb onset) and genetic forms of **ALS**, the overall prognosis for classic **ALS** is uniformly poor.
- Although a small percentage of patients may have a longer survival, the vast majority follow a progressive course with a limited life expectancy, making a
Cardiology UK Medical PG Question 5: A 56-year-old man presents with progressive dyspnea and chest tightness. He works in coal mining. Chest X-ray shows bilateral upper lobe nodules. What is the most likely diagnosis?
- A. Lung cancer
- B. Silicosis
- C. Coal worker's pneumoconiosis (Correct Answer)
- D. Tuberculosis
- E. Sarcoidosis
Cardiology Explanation: ***Coal worker's pneumoconiosis***- This diagnosis is strongly supported by the patient's occupational exposure to **coal dust** and the progressive respiratory symptoms like **dyspnea** and **chest tightness**.- The characteristic Chest X-ray finding of bilateral, often small, **pulmonary nodules** predominantly located in the **upper lung zones** is classic for this condition.*Lung cancer*- Although coal miners have an increased risk of lung cancer, the presentation of diffuse **bilateral small nodules** is more typical of a pneumoconiosis than primary malignancy.- Lung cancer usually manifests as a single, dominant mass, or less commonly as reticulonodular interstitial disease, not typically as diffuse, symmetrical small nodules.*Silicosis*- Silicosis is caused by the inhalation of **crystalline silica** dust, prevalent in occupations like sandblasting or quarrying, which differs from pure coal mining exposure.- While silicosis also causes upper lobe nodules, it often presents radiologically with **"eggshell" calcification** of the hilar lymph nodes, a finding not specified in this case.*Tuberculosis*- Although **post-primary TB** targets the upper lobes, generalized diffuse nodularity suggests pneumoconiosis rather than a primary mycobacterial infection.- TB typically presents with systemic symptoms like **fever**, **night sweats**, and **weight loss**, which are not mentioned in this patient's presentation.*Sarcoidosis*- Sarcoidosis is a systemic disease of unknown etiology characterized by **non-caseating granulomas** and classically presents with **bilateral hilar lymphadenopathy (BHL)** on chest imaging.- The strong history of **coal mining** is the key factor favoring an occupational lung disease over sarcoidosis, as BHL is also absent.
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