Pericardial Disease — MCQs
A patient presents with engorged neck veins, a blood pressure of 80/50 mmHg, and a pulse rate of 100 beats per minute following blunt trauma to the chest. The diagnosis is:
FAST USG focuses on all of the following areas except-
A previously healthy patient presents with dyspnea and low grade fever since 4 months. His lungs are clear. JVP is normal. ECG showed low voltage complexes. What is the possible diagnosis?
Which of the following conditions should not be considered if JVP rises on deep inspiration?
Which of the following findings is seen in pericardial tamponade?
While performing drainage of fluid from the pleural cavity, the needle is introduced through all of the following structures except which one?
A patient presents with features of heart failure. On examination, an irregularly irregular pulse is noted, and the patient has a loud diastolic sound. The jugular venous pressure (JVP) shows a rapid Y descent. What is the most likely diagnosis?
A patient presents with shortness of breath. Vitals are HR = 120/min with BP = 90/60 mm Hg. Echocardiography shows diastolic collapse of the ventricles. What is the best management for this patient?
All of the following statements regarding endocarditis are true, except:
What is the typical site of lesion in endocarditis of rheumatic heart disease?
Pericardial Disease Indian Medical PG Practice Questions and MCQs
Question 1: A patient presents with engorged neck veins, a blood pressure of 80/50 mmHg, and a pulse rate of 100 beats per minute following blunt trauma to the chest. The diagnosis is:
- A. Pneumothorax
- B. Right ventricular failure
- C. Cardiac tamponade (Correct Answer)
- D. Hemothorax
Explanation: ***Cardiac tamponade*** - The clinical presentation shows **two components of Beck's triad**: **engorged neck veins (elevated JVP)** and **hypotension** (80/50 mmHg). While muffled heart sounds (the third component) are not mentioned, this is not required for diagnosis. - The combination of **blunt chest trauma** and these symptoms strongly suggests fluid accumulation in the pericardial sac, compressing the heart and impairing its filling. - **Tachycardia** (100 bpm) represents a compensatory response to reduced cardiac output. *Pneumothorax* - While pneumothorax can cause respiratory distress and hypotension, it typically presents with **absent breath sounds** on the affected side and **hyperresonance to percussion**, which are not described. - Engorged neck veins are not characteristic of simple pneumothorax. **Tension pneumothorax** can cause distended neck veins and severe hypotension, but would also present with severe respiratory distress and tracheal deviation away from the affected side. *Right ventricular failure* - Right ventricular failure can cause **engorged neck veins** but usually presents with signs of systemic congestion like **peripheral edema** and hepatomegaly, developing over time. - This is not typically an acute, immediate consequence of blunt chest trauma. The **acute hypotension** and **tachycardia** are more indicative of obstructive shock (cardiac tamponade) rather than pump failure. *Hemothorax* - Hemothorax involves blood accumulation in the pleural space, leading to **absent breath sounds** and **dullness to percussion** on the affected side. - While it can cause hypotension and tachycardia due to **hypovolemic shock** from blood loss, **engorged neck veins** are not a feature. In fact, significant blood loss typically causes **flat or collapsed neck veins** due to reduced venous return.
Question 2: FAST USG focuses on all of the following areas except-
- A. Splenic
- B. Pleura (Correct Answer)
- C. Hepatic
- D. Pelvic
Explanation: ***Pleura*** - While pleural assessment is included in **extended FAST (E-FAST)** for detecting pneumothorax and hemothorax, the **traditional FAST protocol** focuses specifically on detecting **free fluid** in the **peritoneal** and **pericardial** spaces in trauma patients. - The pleura is not one of the standard **four views** of traditional FAST USG, though it is assessed in the expanded E-FAST protocol. *Splenic* - The **splenorenal recess** (left upper quadrant space between the spleen and left kidney) is one of the four key regions in FAST USG to detect **free fluid**. - Fluid accumulation in this area can indicate injury to the spleen or other abdominal organs. *Hepatic* - The **hepatorenal recess (Morison's pouch)** between the liver and right kidney is a critical view in FAST USG for identifying **free fluid**. - This is often the first place fluid collects in the peritoneum in supine patients and is the most sensitive area for detecting intraperitoneal fluid. *Pelvic* - The **pouch of Douglas** (rectovesical in males or rectouterine in females) is a standard view in FAST USG to detect **free fluid** in the pelvis. - Fluid here can indicate significant abdominal or pelvic injury.
Question 3: A previously healthy patient presents with dyspnea and low grade fever since 4 months. His lungs are clear. JVP is normal. ECG showed low voltage complexes. What is the possible diagnosis?
- A. Rheumatic mitral stenosis
- B. Hypertrophic cardiomyopathy
- C. Tuberculous pericardial effusion (Correct Answer)
- D. Syphilitic aortic aneurysm
Explanation: ***Tuberculous pericardial effusion*** - **Dyspnea** and a **low-grade fever** persisting for several months are suggestive of **tuberculosis** [1]. - **Low voltage complexes on ECG** are characteristic of a **pericardial effusion**, where fluid dampens electrical activity [1]. *Rheumatic mitral stenosis* - While it can cause **dyspnea**, the absence of **JVP elevation** and **clear lungs** make significant heart failure less likely [2]. - ECG in mitral stenosis would typically show **left atrial enlargement** and potentially **atrial fibrillation**, not widespread low voltage. *Hypertrophic cardiomyopathy* - This condition presents with **dyspnea** and can cause **abnormal ECG findings** (e.g., left ventricular hypertrophy, Q waves), but not typically **low voltage complexes**. - **Clear lungs** and normal JVP are inconsistent with severe heart failure from the condition [3]. *Syphilitic aortic aneurysm* - This condition affects the **aorta** and can lead to **aortic regurgitation** or **aortic dissection**, but usually presents differently. - While it can cause **dyspnea** due to heart failure or mass effect, it does not typically cause **low voltage complexes on ECG** or **low-grade fever** for months as the primary presentation.
Question 4: Which of the following conditions should not be considered if JVP rises on deep inspiration?
- A. Complete heart block
- B. Constrictive pericarditis
- C. Restrictive cardiomyopathy
- D. Atrial fibrillation (Correct Answer)
Explanation: The phenomenon of JVP rising on deep inspiration is known as **Kussmaul's sign**, which is indicative of impaired right ventricular filling and is not typically associated with **atrial fibrillation**. In **complete heart block**, there is dissociation between atrial and ventricular contractions. This can lead to **cannon 'a' waves** in the JVP, which are large prominent 'a' waves caused by right atrial contraction against a closed tricuspid valve [1]. **Constrictive pericarditis** is characterized by a rigid pericardium that restricts diastolic filling of the right ventricle. This condition is a classic cause of **Kussmaul's sign**, where the JVP rises paradoxically during inspiration due to increased venous return that cannot be accommodated by the constricted ventricle. **Restrictive cardiomyopathy** involves impaired diastolic filling of the ventricles due to myocardial stiffness. It can also cause a paradoxical rise in JVP during inspiration (**Kussmaul's sign**) because the stiffened right ventricle cannot adequately accommodate the inspiratory increase in venous return.
Question 5: Which of the following findings is seen in pericardial tamponade?
- A. Beck's triad
- B. Kussmaul sign
- C. Pulsus paradoxus (Correct Answer)
- D. All of the options
Explanation: ***Pulsus paradoxus*** - This is an **abnormally large decrease** in systolic blood pressure (>10 mmHg) and pulse wave amplitude during inspiration. - It occurs due to compromised ventricular filling caused by **increased pericardial pressure** in tamponade [1]. *Beck's triad* - Beck's triad (hypotension, jugular venous distention, and muffled heart sounds) are **signs/symptoms** of pericardial tamponade, not a finding in the same way pulsus paradoxus is [1]. - This clinical triad points towards the diagnosis but does not describe a physiological finding as specifically as pulsus paradoxus. *Kussmaul sign* - The Kussmaul sign is a paradoxical **increase** in jugular venous pressure (JVP) during inspiration. - While it indicates impaired right ventricular filling, it is classically seen in **constrictive pericarditis** and severe right heart failure, not typically in pericardial tamponade [2]. *All of the options* - This option is incorrect because Kussmaul sign is typically associated with **constrictive pericarditis** rather than pericardial tamponade [2]. - While Beck's triad is characteristic of tamponade, pulsus paradoxus is a specific hemodynamic finding seen in this condition [1].
Question 6: While performing drainage of fluid from the pleural cavity, the needle is introduced through all of the following structures except which one?
- A. Thoracic fascia
- B. Skin
- C. Pulmonary pleura (Correct Answer)
- D. Intercostal muscles
Explanation: ***Pulmonary pleura*** - The needle for pleural fluid drainage, or thoracentesis, passes through the **parietal pleura** [1] but not the **pulmonary (visceral) pleura**. - Puncturing the pulmonary pleura would indicate the needle has entered the lung parenchyma, which is an avoidable complication. *Skin* - The **skin** is the outermost layer and the first structure the needle penetrates during a thoracentesis. - It must be sterilized prior to the procedure. *Thoracic fascia* - The needle passes through the **superficial fascia** and then the **deep fascia** covering the intercostal muscles. - These fascial layers provide structural support and enclose the musculature of the thoracic wall. *Intercostal muscles* - The needle traverses the **external**, **internal**, and **innermost intercostal muscles** as it moves deeper into the thoracic cavity. - The neurovascular bundle runs between the internal and innermost intercostals, hence the needle is typically inserted over the superior border of the rib to avoid it [1].
Question 7: A patient presents with features of heart failure. On examination, an irregularly irregular pulse is noted, and the patient has a loud diastolic sound. The jugular venous pressure (JVP) shows a rapid Y descent. What is the most likely diagnosis?
- A. Constrictive pericarditis
- B. Cardiac tamponade
- C. Mitral stenosis (Correct Answer)
- D. Aortic regurgitation
- E. Mitral regurgitation
Explanation: ***Mitral stenosis*** - An **irregularly irregular pulse** suggests **atrial fibrillation**, a common complication of mitral stenosis due to left atrial enlargement. - A **loud diastolic sound**, also known as an **opening snap**, is characteristic of a stenotic mitral valve as it opens, occurring early in diastole. - The **rapid Y descent** on JVP can occur due to elevated right-sided pressures from pulmonary hypertension secondary to mitral stenosis. *Constrictive pericarditis* - While it can cause heart failure and an elevated JVP with a rapid Y descent (**Friedreich's sign**), the description of an "irregularly irregular pulse" and a "loud diastolic sound" (opening snap) is not typical. - The loud diastolic sound in constrictive pericarditis would be a **pericardial knock**, which is usually later than an opening snap and less distinct. *Cardiac tamponade* - Characterized by **Beck's triad** (hypotension, muffled heart sounds, elevated JVP) and often presents with **pulsus paradoxus**. - The JVP in tamponade typically shows an **absent or diminished Y descent**, due to impaired ventricular filling from external compression. *Aortic regurgitation* - Causes a **diastolic murmur**, but not a loud diastolic sound or opening snap. - The pulse is often a **collapsing pulse** or **water-hammer pulse**, and it is not typically irregularly irregular unless atrial fibrillation or another arrhythmia is co-existent. *Mitral regurgitation* - Can cause heart failure and atrial fibrillation, but the characteristic finding is a **pansystolic murmur**, not a loud diastolic sound. - There is no opening snap in mitral regurgitation; instead, there may be an **S3 gallop** in severe cases. - The rapid Y descent is less prominent compared to mitral stenosis.
Question 8: A patient presents with shortness of breath. Vitals are HR = 120/min with BP = 90/60 mm Hg. Echocardiography shows diastolic collapse of the ventricles. What is the best management for this patient?
- A. Start diuretic with BP monitoring
- B. Intra-aortic balloon pump
- C. Pericardiocentesis (Correct Answer)
- D. Ventricular assist device
Explanation: **Pericardiocentesis** * The constellation of **tachycardia**, **hypotension**, and **diastolic collapse of the ventricles** on echocardiography is highly suggestive of **cardiac tamponade**, a life-threatening condition [1]. * **Pericardiocentesis** is the definitive treatment for cardiac tamponade, as it relieves the pressure on the heart by draining the pericardial fluid, thereby restoring cardiac output and improving hemodynamics [1]. * *Start diuretic with BP monitoring* * Administering **diuretics** would further decrease intravascular volume and worsen already compromised cardiac output in the setting of hypotension due to cardiac tamponade. * While **blood pressure monitoring** is essential, diuretics are contraindicated and would exacerbate the patient's hemodynamic instability. * *Intra-aortic balloon pump* * An **intra-aortic balloon pump (IABP)** primarily assists in improving **coronary perfusion** and reducing **afterload** in conditions like cardiogenic shock or severe heart failure. * An IABP does not address the fundamental problem of external compression of the heart in cardiac tamponade and would not relieve the diagnostic finding of diastolic collapse of the ventricles. * *Ventricular assist device* * A **ventricular assist device (VAD)** is used to support failing ventricles by pumping blood from the heart to the rest of the body, typically in cases of advanced heart failure. * A VAD does not resolve the external compression on the heart caused by pericardial fluid in cardiac tamponade and is an invasive measure not indicated as a primary treatment in this scenario.
Question 9: All of the following statements regarding endocarditis are true, except:
- A. Infective endocarditis can develop large friable vegetations.
- B. Non-bacterial thrombotic endocarditis can develop in disseminated intravascular coagulation.
- C. Vegetations of infective endocarditis occur on both surfaces of cusps. (Correct Answer)
- D. All of the above.
Explanation: ### Explanation The correct answer is **C**, as it is a false statement. In **Infective Endocarditis (IE)**, vegetations typically occur on the **atrial surface of atrioventricular valves** (Mitral/Tricuspid) and the **ventricular surface of semilunar valves** (Aortic/Pulmonary). They are generally found on the line of closure on the surface exposed to the forward flow of blood. #### Why Option C is the Correct Choice (The False Statement): Vegetations occurring on **both surfaces** of the valve cusps (and even on the endocardium) is a hallmark of **Libman-Sacks Endocarditis** (associated with Systemic Lupus Erythematosus), not Infective Endocarditis [1]. #### Analysis of Other Options: * **Option A (True):** IE vegetations are characterized as **large, irregular, and friable** (easily crumbled) [1]. Their friability makes them highly prone to embolization, leading to systemic septic infarcts [2]. * **Option B (True):** **Non-Bacterial Thrombotic Endocarditis (NBTE)**, also known as marantic endocarditis, occurs in **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Heart, pp. 568-570. [2] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Cardiovascular Disease, pp. 294-296.
Question 10: What is the typical site of lesion in endocarditis of rheumatic heart disease?
- A. Along the lines of closure of valves (Correct Answer)
- B. Free margin of valves
- C. Both sides of valves
- D. Valve cusps
Explanation: In Acute Rheumatic Fever (ARF), the endocardial involvement manifests as **Rheumatic Endocarditis**, characterized by the formation of small, sterile, friable vegetations called **verrucae**. [1] ### Why "Along the lines of closure" is correct: The vegetations in rheumatic heart disease are unique because they develop specifically at the **lines of closure** of the valve leaflets (on the atrial surface of AV valves and ventricular surface of semilunar valves). [1] This occurs because the inflammatory process makes the endocardium edematous and fragile; the repetitive mechanical trauma of the valves closing leads to focal endothelial loss, triggering the deposition of fibrin and platelets at these precise contact points. ### Explanation of Incorrect Options: * **B. Free margin of valves:** While the lines of closure are near the margins, they are not the "free edge" itself. Vegetations on the free margins are more characteristic of Infective Endocarditis (IE). [1] * **C. Both sides of valves:** This is the hallmark of **Libman-Sacks Endocarditis** (associated with SLE), where vegetations appear on both the upper and lower surfaces of the cusps. [1] * **D. Valve cusps:** This is too non-specific. While the lesion is on the cusp, the NEET-PG examiner looks for the specific anatomical location (lines of closure). ### High-Yield Clinical Pearls for NEET-PG: * **Morphology:** Rheumatic verrucae are 1–2 mm, small, firm, sterile, and non-destructive (unlike the large, friable, destructive vegetations of Infective Endocarditis). [1] * **Valve Frequency:** Mitral > Aortic > Tricuspid > Pulmonary (MATP). * **MacCallum’s Patch:** An area of endocardial thickening usually found in the **posterior wall of the left atrium**, caused by regurgitant jets. * **Pathognomonic Feature:** The presence of **Aschoff bodies** (containing Anitschkow "caterpillar" cells) in the myocardium. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Heart, p. 568.
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