Edema and Fluid Retention Indian Medical PG Practice Questions and MCQs
Practice Indian Medical PG questions for Edema and Fluid Retention. These multiple choice questions (MCQs) cover important concepts and help you prepare for your exams.
Edema and Fluid Retention Indian Medical PG Question 1: Least common cause for bilateral pedal edema
- A. CKD
- B. Chronic vascular insufficiency (Correct Answer)
- C. CLD
- D. HF with reduced ejection fraction
Edema and Fluid Retention Explanation: ***Chronic vascular insufficiency***
- While chronic venous insufficiency is a common cause of bilateral pedal edema, **arterial insufficiency** (a type of chronic vascular insufficiency) is a much less common cause of pure edema and is more often associated with **ischemic pain**, **ulcers**, and **skin atrophy** [1].
- **Arterial insufficiency** primarily causes limb ischemia rather than significant edema, differentiating it from situations where fluid retention is the primary issue [2].
*CKD*
- **Chronic kidney disease (CKD)** leads to impaired fluid and sodium excretion, causing generalized fluid overload.
- This fluid overload commonly manifests as **bilateral pedal edema** due to gravity-dependent fluid accumulation.
*CLD*
- **Chronic liver disease (CLD)**, particularly cirrhosis, results in **portal hypertension** and decreased hepatic synthesis of **albumin**.
- This leads to reduced oncotic pressure and increased hydrostatic pressure, driving fluid into the extravascular space, often causing **ascites** and **bilateral pedal edema**.
*HF with reduced ejection fraction*
- **Heart failure with reduced ejection fraction (HFrEF)** impairs the heart's ability to pump blood effectively, leading to fluid backup in the venous system [2].
- This increased hydrostatic pressure in the peripheral capillaries directly causes **bilateral pedal edema** as fluid extravasates into the interstitial space [2].
Edema and Fluid Retention Indian Medical PG Question 2: A patient with heart failure presents with worsening peripheral edema. Which of the following mechanisms contributes most directly to this finding?
- A. Lymphatic obstruction
- B. Decreased plasma oncotic pressure
- C. Increased capillary hydrostatic pressure (Correct Answer)
- D. Increased vascular permeability
Edema and Fluid Retention Explanation: ***Increased capillary hydrostatic pressure***
- In **heart failure**, the heart's inability to effectively pump blood forward leads to a **backup of blood** in the venous system. [1]
- This elevated venous pressure is transmitted backward to the capillaries, increasing **capillary hydrostatic pressure**, which significantly promotes the filtration of fluid from the capillaries into the interstitial space, causing edema. [1]
*Lymphatic obstruction*
- **Lymphatic obstruction** typically results in **lymphedema**, which is initially non-pitting and affects specific areas due to localized lymphatic damage.
- While it can cause edema, it is not the primary or most direct mechanism for generalized peripheral edema in typical **heart failure**.
*Decreased plasma oncotic pressure*
- **Decreased plasma oncotic pressure**, often due to conditions like **liver disease** or **nephrotic syndrome**, reduces the osmotic pull of fluid back into the capillaries.
- While it can contribute to edema, this is not the most direct or primary mechanism in heart failure, where fluid retention is predominantly driven by pressure changes.
*Increased vascular permeability*
- **Increased vascular permeability**, often seen in **inflammation** or **allergic reactions**, allows proteins and fluid to leak out of capillaries, forming exudative edema.
- This is rarely the main cause of the widespread, **pitting edema** seen in heart failure, which is transudative and primarily pressure-driven.
Edema and Fluid Retention Indian Medical PG Question 3: Which condition is most commonly associated with non-pitting edema?
- A. Congestive heart failure (CHF)
- B. Myxedema (Hypothyroidism) (Correct Answer)
- C. Liver cirrhosis
- D. Nephrotic syndrome
Edema and Fluid Retention Explanation: ***Myxedema (Hypothyroidism)***
- Non-pitting edema in myxedema is caused by the accumulation of **hyaluronic acid** and other glycosaminoglycans in the interstitial tissue [2].
- This accumulation creates a **gel-like matrix** that does not pit when pressed, distinguishing it from other forms of edema.
*Congestive heart failure (CHF)*
- CHF typically causes **pitting edema** due to increased hydrostatic pressure, leading to fluid extravasation into the interstitial space.
- The excess fluid is primarily water and electrolytes, allowing for displacement upon pressure.
*Liver cirrhosis*
- Liver cirrhosis leads to **pitting edema**, often in the lower extremities and abdomen (**ascites**), due to decreased albumin synthesis and portal hypertension.
- The reduced oncotic pressure and increased hydrostatic pressure result in fluid leakage that is easily compressible [1].
*Nephrotic syndrome*
- Nephrotic syndrome is characterized by **pitting edema**, which is widespread (**anasarca**) and primarily caused by severe **hypoalbuminemia** [1].
- The significant loss of protein in the urine reduces plasma oncotic pressure, leading to fluid accumulation that readily pits with pressure.
Edema and Fluid Retention Indian Medical PG Question 4: Edema in nephrotic syndrome is due to ?
- A. Hyperlipidemia
- B. Hypoalbuminemia (Correct Answer)
- C. Sodium & water retention
- D. Increased venous pressure
Edema and Fluid Retention Explanation: ***Hypoalbuminemia***
- In **nephrotic syndrome**, damage to the glomerular basement membrane leads to significant **proteinuria**, particularly the loss of **albumin**. [3]
- **Hypoalbuminemia** reduces the plasma **oncotic pressure**, causing fluid to shift from the intravascular space into the interstitial space, resulting in **edema**. [1], [3]
*Hyperlipidemia*
- **Hyperlipidemia** is a common feature of nephrotic syndrome but is not directly responsible for the development of edema.
- It results from increased hepatic synthesis of lipoproteins in response to low systemic **oncotic pressure**.
*Sodium & water retention*
- While **sodium and water retention** do contribute to the exacerbation of edema in nephrotic syndrome, they are secondary events driven by the initial **hypovolemia** resulting from **hypoalbuminemia**. [2]
- The reduced effective circulating volume triggers the **renin-angiotensin-aldosterone system** and antidiuretic hormone release, leading to renal sodium and water reabsorption.
*Increased venous pressure*
- **Increased venous pressure** is not a primary cause of edema in nephrotic syndrome.
- It is typically associated with conditions like **congestive heart failure** or local venous obstruction, where it impedes venous return and causes fluid accumulation.
Edema and Fluid Retention Indian Medical PG Question 5: 12 years male came with swelling of lower end tibia which is surrounded by rim of reactive bone. What is most likely diagnosis?
- A. GCT
- B. Hyper PTH
- C. Brodie's Abscess (Correct Answer)
- D. Osteomyelitis
Edema and Fluid Retention Explanation: ***Brodie's Abscess***
- A **Brodie's abscess** is a subacute or chronic osteomyelitis characterized by a localized bone abscess, typically with a surrounding **sclerotic rim of reactive bone**.
- It often occurs in the **metaphysis of long bones** (like the lower end of the tibia) in children and adolescents, presenting with localized pain and swelling.
*GCT*
- **Giant cell tumor (GCT)** typically occurs in **skeletally mature adults** (20-40 years old) and is a lytic lesion often found in the **epiphysis** of long bones, rarely with a distinct sclerotic rim.
- GCTs are generally more aggressive and demonstrate a **soap-bubble appearance** with cortical expansion rather than a thick reactive bone rim.
*Hyper PTH*
- **Hyperparathyroidism** causes bone changes such as **osteopenia**, **subperiosteal bone resorption**, especially in the phalanges, and **brown tumors** (lytic lesions).
- It does not typically present as a localized lesion with a **sclerotic rim of reactive bone** in a child.
*Osteomyelitis*
- While chronic osteomyelitis can involve local bone destruction and reactive bone formation, a **Brodie's abscess** is a specific, well-circumscribed form of **subacute osteomyelitis**.
- Acute osteomyelitis presents with more diffuse systemic symptoms (fever, malaise) and less defined reactive bone in its early stages compared to the distinct **sclerotic rim** seen in a Brodie's abscess.
Edema and Fluid Retention Indian Medical PG Question 6: A 40-year-old woman presents with facial swelling, periorbital edema, and proteinuria. Which condition is most likely responsible for her symptoms?
- A. Congestive heart failure
- B. Liver cirrhosis
- C. Hypothyroidism
- D. Nephrotic syndrome (Correct Answer)
Edema and Fluid Retention Explanation: ***Nephrotic syndrome***
- The combination of **facial swelling**, **periorbital edema**, and **proteinuria** is the classic triad of symptoms defining nephrotic syndrome [1].
- This syndrome is characterized by **massive proteinuria** (>3.5g/day), leading to **hypoalbuminemia**, which in turn causes reduced plasma oncotic pressure and fluid extravasation into interstitial spaces [1].
*Congestive heart failure*
- While it can cause **edema**, it typically presents with **dependent edema** (e.g., in legs), **dyspnea**, and signs of fluid overload, not prominent facial or periorbital edema as a primary symptom with proteinuria.
- **Proteinuria** can occur in chronic heart failure due to reduced renal perfusion, but it is usually not the massive proteinuria characteristic of nephrotic syndrome.
*Liver cirrhosis*
- Can cause **peripheral edema** and **ascites** due to portal hypertension and hypoalbuminemia, but **facial and periorbital edema** are less common as primary presenting symptoms.
- While some **proteinuria** can be seen in chronic liver disease, it's typically milder and not the massive proteinuria seen in nephrotic syndrome.
*Hypothyroidism*
- Can cause **non-pitting edema** (myxedema), often described as puffy facial features and periorbital swelling, due to the accumulation of **hyaluronic acid** in the interstitial space.
- However, **significant proteinuria** is not a characteristic feature of hypothyroidism; hence, it's less likely to explain the full constellation of symptoms.
Edema and Fluid Retention Indian Medical PG Question 7: Consider the following clinical features :
1. Raised ICP
2. Seizures
3. Focal deficit
4. Headache Which of the above clinical features are related to most brain tumours?
- A. 2, 3 and 4 only
- B. 1 and 2 only
- C. 1, 2, 3 and 4 (Correct Answer)
- D. 1, 2 and 3 only
Edema and Fluid Retention Explanation: ***1, 2, 3 and 4***
- All four clinical features—**raised ICP**, **seizures**, **focal neurological deficits**, and **headache**—are commonly associated with brain tumors [1].
- Brain tumors can cause **increased intracranial pressure** through mass effect, edema, or CSF flow obstruction, leading to headaches and, less commonly, seizures [1]. **Focal deficits** result from direct tissue destruction or compression depending on the tumor's location [2].
*2, 3 and 4 only*
- This option incorrectly omits **raised ICP**, which is a frequent and significant symptom of brain tumors, contributing to headaches, nausea, vomiting, and altered mental status [1].
- While seizures, focal deficits, and headaches are common, **raised ICP** often underlies many of these symptoms.
*1 and 2 only*
- This option excludes **focal deficits** and **headache**, both of which are very common presentations of brain tumors.
- The specific location of a tumor often dictates **focal deficits** [2], and **headache** is one of the most prevalent symptoms.
*1, 2 and 3 only*
- This option incorrectly omits **headache**, which is a classic and highly prevalent symptom in patients with brain tumors, often severe and resistant to common analgesics.
- Headaches can result from **mass effect**, **increased ICP** [1], or irritation of pain-sensitive structures within the brain.
Edema and Fluid Retention Indian Medical PG Question 8: A 75-year-old man with chronic kidney disease presents with worsening dyspnea and lower extremity edema. Which class of drugs should be used cautiously in this patient?
- A. NSAIDs (Correct Answer)
- B. Beta-blockers
- C. Diuretics
- D. ACE inhibitors
Edema and Fluid Retention Explanation: ***NSAIDs***
- **NSAIDs** can cause **acute kidney injury** by inhibiting prostaglandin synthesis, which leads to **afferent arteriolar vasoconstriction** and reduced renal blood flow. This effect is exaggerated in patients with **pre-existing chronic kidney disease**.
- They also can exacerbate **fluid retention** and worsen **edema** and symptoms of **heart failure**, which is particularly problematic in a patient with dyspnea and lower extremity edema.
*ACE inhibitors*
- While generally beneficial in CKD to slow progression, **ACE inhibitors** can cause **acute kidney injury** in patients with **renal artery stenosis** or severe volume depletion due to efferent arteriolar vasodilation.
- They can also lead to **hyperkalemia**, which requires monitoring, but they are not contraindicated in this patient's presentation per se.
*Beta-blockers*
- **Beta-blockers** are often prescribed for cardiovascular conditions common in CKD patients, such as **hypertension** and **heart failure**, and are generally safe in CKD with appropriate dosing.
- While some beta-blockers are renally excreted, their primary mechanism does not directly worsen kidney function or fluid retention in the same way NSAIDs do.
*Diuretics*
- **Diuretics** are essential in managing fluid overload, dyspnea, and edema in patients with **chronic kidney disease** and heart failure.
- Although loop diuretics may be less effective with reduced kidney function and higher doses might be needed, they are not typically used cautiously; rather, they are a cornerstone of treatment for these symptoms.
Edema and Fluid Retention Indian Medical PG Question 9: What is a potential risk associated with the use of thiazolidinediones in the treatment of type 2 diabetes?
- A. Heart failure (Correct Answer)
- B. Pulmonary fibrosis
- C. Myocarditis
- D. Renal dysfunction
Edema and Fluid Retention Explanation: ***Heart failure***
- Thiazolidinediones (TZDs), such as **pioglitazone** and **rosiglitazone**, can cause **fluid retention** and **volume expansion**, which may precipitate or worsen congestive heart failure.
- This risk is higher in patients with pre-existing cardiac conditions and is a significant concern for these drugs.
*Pulmonary fibrosis*
- **Pulmonary fibrosis** is not a known or common adverse effect associated with thiazolidinedione use.
- This condition is typically linked to certain other medications (e.g., **amiodarone**, **methotrexate**) or systemic diseases.
*Myocarditis*
- **Myocarditis**, inflammation of the heart muscle, is not a recognized side effect of thiazolidinediones.
- Myocarditis is more commonly caused by viral infections, autoimmune diseases, or hypersensitivity reactions to certain drugs, but not TZDs.
*Renal dysfunction*
- While TZDs can cause fluid retention, they do not directly cause **renal dysfunction** or damage the kidneys.
- In fact, some studies suggest they may have renoprotective effects due to reduced proteinuria, although fluid balance needs careful monitoring in patients with impaired renal function.
Edema and Fluid Retention Indian Medical PG Question 10: A man takes peanut and develops tongue swelling, neck swelling, stridor, hoarseness of voice. What is the probable diagnosis?
- A. FB in larynx
- B. Angioneurotic edema (Correct Answer)
- C. Parapharyngeal abscess
- D. FB bronchus
Edema and Fluid Retention Explanation: Andioneurotic edema
- The combination of **tongue swelling**, **neck swelling**, **stridor**, and **hoarseness of voice** following peanut ingestion is highly suggestive of **angioneurotic edema**, a severe allergic reaction that can lead to airway obstruction [1].
- This is a life-threatening condition requiring immediate medical intervention, often associated with generalized **anaphylaxis** when triggered by allergens [2].
*FB in larynx*
- While a **foreign body (FB) in the larynx** can cause stridor and hoarseness, the widespread swelling of the tongue and neck points away from a localized laryngeal obstruction [3].
- A laryngeal FB would typically be associated with a more sudden onset of choking and coughing, not diffuse edema [3].
*Parapharyngeal abscess*
- A **parapharyngeal abscess** would typically present with **fever**, **severe throat pain**, and **trismus** (difficulty opening the mouth), which are not mentioned in this scenario.
- The acute, rapid onset of symptoms after peanut consumption is inconsistent with the slower progression of an abscess.
*FB bronchus*
- A **foreign body in the bronchus** would primarily cause **coughing**, **wheezing**, and possibly **respiratory distress**, often unilateral, rather than severe global swelling of the tongue and neck.
- Inspiratory stridor and hoarseness are more indicative of upper airway involvement than bronchial obstruction.
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