Cardiology Practice Questions

Q: Which of the following parameters is not used for risk assessment and need for anticoagulation in a patient of atrial fibrillation?

Heart rate. In patients with Atrial Fibrillation (AF), the decision to initiate anticoagulation is based on the risk of thromboembolism (stroke), not the ventricular rate [1]. **Explanation of the Correct Answer:** **Option B (Heart rate)** is the correct answer because it is used for **symptom management** and **rate control** strategies, but it does not predict the risk of clot formation in the left atrial appendage [1]. Whether a patient has a heart rate of 60 bpm or 160 bpm, their stroke risk remains dependent on their underlying comorbidities, not the rate itself. **Explanation of Incorrect Options:** The standard tool for risk stratification in AF is the **CHA₂DS₂-VASc score**. The parameters included are: * **Age (Option A):** Age 65–74 years (1 point) and ≥75 years (2 points) are significant risk factors [1]. * **Gender (Option C):** Female sex (1 point) is a recognized risk modifier [1]. * **Vascular disease (Option D):** Prior MI, peripheral artery disease, or aortic plaque (1 point) increases the risk of systemic embolism [1]. * *Other components:* Congestive heart failure, Hypertension, Diabetes mellitus, and prior Stroke/TIA (2 points) [1]. **High-Yield Clinical Pearls for NEET-PG:** 1. **Anticoagulation Threshold:** Generally, anticoagulation is recommended if the CHA₂DS₂-VASc score is **≥2 in men** or **≥3 in women** [1]. 2. **Valvular AF:** If AF is associated with moderate-to-severe Mitral Stenosis or a Mechanical Heart Valve, the CHA₂DS₂-VASc score is not used; these patients require **Warfarin** regardless of the score. 3. **NOACs vs. Warfarin:** Non-vitamin K antagonist oral anticoagulants (e.g., Apixaban, Dabigatran) are now preferred over Warfarin for non-valvular AF. 4. **HAS-BLED Score:** Used to assess bleeding risk before starting anticoagulation, but a high score is not a contraindication; it warrants closer monitoring.

Q: Giant V wave on examination of the jugular venous pulse is suggestive of which condition?

Tricuspid incompetence. ### Explanation **Correct Answer: B. Tricuspid incompetence (Tricuspid Regurgitation)** The **v wave** in the jugular venous pulse (JVP) represents atrial filling against a closed tricuspid valve during ventricular systole. In **Tricuspid Incompetence (Regurgitation)**, blood leaks backward from the right ventricle into the right atrium during systole [1]. This additional volume causes the right atrium to fill rapidly and excessively, leading to a **"Giant V wave"** (also known as a Lancisi wave) [1]. This wave often obliterates the 'x' descent, creating a single large positive deflection during systole [1]. **Analysis of Incorrect Options:** * **A. Atrial flutter:** Typically presents with rapid, regular "flutter waves" (saw-tooth appearance) in the JVP, but not giant v waves. * **C. Ventricular septal defect (VSD):** Usually does not affect the JVP unless it leads to significant right heart failure or Eisenmenger syndrome. Even then, it typically presents with a prominent 'a' wave due to decreased right ventricular compliance. * **D. Pulmonary stenosis:** Characterized by a **Giant 'a' wave** because the right atrium must contract against a stiff, hypertrophied right ventricle (increased resistance to filling). **High-Yield Clinical Pearls for NEET-PG:** * **Giant 'a' wave:** Seen in Tricuspid Stenosis, Pulmonary Stenosis, and Pulmonary Hypertension (Right atrium contracting against resistance). * **Cannon 'a' wave:** Seen in AV dissociation (Complete Heart Block, Ventricular Tachycardia) when the atrium contracts against a *closed* tricuspid valve. * **Absent 'a' wave:** Characteristic of Atrial Fibrillation. * **Friedreich’s Sign:** Steep 'y' descent seen in Constrictive Pericarditis. * **Kussmaul’s Sign:** Paradoxical rise in JVP on inspiration (Constrictive Pericarditis, Right Ventricular Infarction).

Q: A 21-year-old male presents with exertional dyspnea, raised JVP, and loud P2. ECG shows right axis deviation. All of the following conditions are possible except?

Ostium primum. The clinical presentation of exertional dyspnea, raised JVP, loud $P_2$, and ECG evidence of **Right Axis Deviation (RAD)** points toward **Pulmonary Hypertension** and **Right Ventricular Hypertrophy (RVH)** [1], [4]. **Why Ostium Primum is the Correct Answer:** While both Ostium Secundum and Ostium Primum ASDs cause right-sided volume overload, **Ostium Primum ASD** is characteristically associated with **Left Axis Deviation (LAD)** on ECG. This occurs because the conduction system is displaced, often accompanied by a cleft mitral valve. Since the question specifies RAD, Ostium Primum is the "except" condition. **Analysis of Other Options:** * **Atrial Septal Defect (Secundum):** This is the most common type of ASD. It leads to right ventricular overload and typically presents with **Right Axis Deviation** and RSR' pattern [2]. * **Mitral Stenosis:** Chronic mitral stenosis leads to pulmonary venous hypertension, reactive pulmonary arterial hypertension, and eventually RVH, which manifests as **Right Axis Deviation**. * **Pulmonary Thromboembolism:** Acute or chronic pulmonary embolism increases right ventricular afterload, leading to right heart strain and **Right Axis Deviation** (often seen as part of the S1Q3T3 pattern or persistent RAD in chronic cases) [1]. ### High-Yield NEET-PG Pearls: * **ASD Axis Rule:** * **Ostium Secundum:** Right Axis Deviation (RAD). * **Ostium Primum:** Left Axis Deviation (LAD). * **Loud $P_2$:** A hallmark sign of Pulmonary Arterial Hypertension [3], [4]. * **ECG in RVH:** Look for R wave > S wave in V1 and Right Axis Deviation (> +90°) [4]. * **Ostium Primum Associations:** Frequently associated with Down Syndrome and Endocardial Cushion Defects.

Q: A 62-year-old male with underlying COPD develops a viral upper respiratory infection and begins taking an over-the-counter decongestant. Shortly thereafter he experiences palpitations and presents to the emergency room, where the following rhythm strip is obtained, demonstrating what rhythm?

Atrial flutter with 4:1 atrioventricular block. ***Atrial flutter with 4:1 atrioventricular block*** - Characteristic **sawtooth flutter waves (F-waves)** at approximately **300 bpm** with **4:1 AV conduction** resulting in a ventricular rate of ~75 bpm. - Clinical trigger includes **COPD exacerbation** and **sympathomimetic decongestant** use, both predisposing to atrial arrhythmias. *Normal sinus rhythm* - Would show **regular P waves** before each QRS complex with normal morphology and rate (60-100 bpm). - Patient's presentation with **palpitations** and **decongestant use** suggests an abnormal rhythm rather than normal sinus rhythm. *Junctional rhythm* - Characterized by **absent or inverted P waves** and a regular ventricular rate of 40-60 bpm originating from the AV junction. - Does not explain the **palpitations** or the typical ECG findings associated with sympathomimetic stimulation in COPD patients. *Paroxysmal atrial tachycardia with 2:1 atrioventricular block* - Would show **discrete P waves** at a faster rate (typically 150-250 bpm) with **2:1 AV conduction**. - Lacks the characteristic **sawtooth pattern** of flutter waves and typically has a different atrial rate than the ~300 bpm seen in atrial flutter.

Q: Quincke's sign in aortic regurgitation refers to which of the following?

Capillary nail bed pulsation. **Explanation:** **Aortic Regurgitation (AR)** is characterized by a high stroke volume and a rapid fall in arterial pressure during diastole, leading to a **wide pulse pressure** [1]. This "hyperdynamic circulation" results in numerous peripheral signs, of which **Quincke’s sign** is a classic manifestation. * **Correct Answer (C):** Quincke’s sign refers to **capillary pulsations** visible in the nail beds. It is elicited by applying gentle pressure to the tip of the fingernail; the nail bed alternates between flushing (systole) and blanching (diastole). This occurs due to the transmission of large pressure waves into the microvasculature. **Analysis of Incorrect Options:** * **Option A (Müller’s sign):** This refers to systolic pulsations of the **uvula**. * **Option B (Becker’s sign):** This refers to visible pulsations of the **retinal arteries** or arterioles upon ophthalmoscopic examination. * **Option D (Rosenbach’s sign):** This refers to systolic pulsations of the **liver**. (Note: A pulsating liver is also a hallmark of Tricuspid Regurgitation). **High-Yield Clinical Pearls for NEET-PG:** * **De Musset’s sign:** Rhythmic head nodding in time with the heartbeat [1]. * **Corrigan’s pulse:** "Water-hammer" pulse characterized by a rapid upstroke and collapse [1], [2]. * **Traube’s sign:** "Pistol shot" sounds heard over the femoral arteries. * **Duroziez’s sign:** A systolic and diastolic murmur heard over the femoral artery when compressed by the stethoscope. * **Hill’s sign:** Popliteal systolic BP exceeding brachial systolic BP by >20 mmHg (the most sensitive sign for AR severity).

Q: The Framingham Risk Score is used to determine which of the following?

Cardiovascular mortality risk due to atherosclerosis. **Explanation:** The **Framingham Risk Score (FRS)** is a validated clinical tool used to estimate an individual's **10-year risk of developing coronary heart disease (CHD)** or experiencing major cardiovascular events (mortality/morbidity) due to atherosclerosis [1]. It integrates multiple risk factors—age, gender, total cholesterol, HDL cholesterol, smoking status, and systolic blood pressure—to categorize patients into low, intermediate, or high-risk groups [1]. This helps clinicians decide on the intensity of primary prevention strategies, such as statin therapy [2]. **Analysis of Options:** * **Option A & B:** These are incorrect. The Framingham Risk Score is for **primary prevention of atherosclerosis**. For the **diagnosis** of Congestive Heart Failure (CHF), clinicians use the **Framingham Criteria** (Major and Minor criteria like PND, JVP elevation, and S3 gallop). For the **severity** of CHF, the **NYHA Classification** (Functional) or **ACC/AHA Stages** (Structural) are used. * **Option D:** The need for stenting in chronic stable angina is determined by symptomatic burden, response to medical therapy, and objective evidence of ischemia (e.g., Stress Test or FFR), not by a 10-year risk calculator [3]. **High-Yield Clinical Pearls for NEET-PG:** * **Framingham Criteria for CHF:** Remember that 2 major OR 1 major + 2 minor criteria are required for diagnosis. * **QRISK3 & ASCVD Risk Estimator:** These are newer alternatives to the Framingham score used in modern guidelines (NICE and AHA/ACC respectively). * **Diabetes Mellitus:** In many risk models, DM is considered a **"Coronary Artery Disease Risk Equivalent,"** automatically placing the patient in a high-risk category.

Q: A patient with mitral stenosis has developed pulmonary artery hypertension. Which of the following auscultatory findings may be heard?

Pan-systolic murmur. The correct answer is **Pan-systolic murmur**. **1. Why it is correct:** In patients with long-standing Mitral Stenosis (MS), the chronic increase in left atrial pressure leads to reactive **Pulmonary Artery Hypertension (PAH)** [1]. This increased pressure in the pulmonary circuit causes the right ventricle (RV) to enlarge and fail, leading to **Functional Tricuspid Regurgitation (TR)** due to the stretching of the tricuspid annulus. Tricuspid Regurgitation characteristically produces a **pan-systolic (holosystolic) murmur**, best heard at the left lower sternal border, which typically increases in intensity during inspiration (**Carvallo’s sign**). **2. Why the other options are incorrect:** * **Option A (Early diastolic, crescendo murmur):** This is incorrect. While PAH can cause an early diastolic murmur (Graham Steell murmur) due to functional pulmonary regurgitation, it is **decrescendo** in nature, not crescendo. * **Option B (Mid-systolic, crescendo-decrescendo murmur):** This is typical of Aortic Stenosis or Flow murmurs. While PAH may cause a brief pulmonary ejection click/murmur, the pan-systolic murmur of TR is a more definitive finding of secondary RV involvement. * **Option D (Mid-diastolic, rumbling murmur):** This is the classic murmur of **Mitral Stenosis** itself [1]. While present in this patient, the question specifically asks for findings associated with the *development of PAH*. **Clinical Pearls for NEET-PG:** * **Graham Steell Murmur:** A high-pitched, blowing, decrescendo early diastolic murmur heard in the pulmonary area due to functional PR in severe PAH. * **Signs of PAH in MS:** Loud P2 (palpable as Dressler’s sign), Right Ventricular Heave, and the murmur of TR [1]. * **Carvallo’s Sign:** Helps differentiate TR (increases with inspiration) from MR (does not increase with inspiration).

Question 1

Which of the following parameters is not used for risk assessment and need for anticoagulation in a patient of atrial fibrillation?

Accepted Answer

Heart rate

Answer

Age

Answer

Gender

Answer

Vascular disease

Question 2

Giant V wave on examination of the jugular venous pulse is suggestive of which condition?

Accepted Answer

Tricuspid incompetence

Answer

Atrial flutter with variable block

Answer

Ventricular septal defect

Answer

Pulmonary stenosis

Question 3

A 21-year-old male presents with exertional dyspnea, raised JVP, and loud P2. ECG shows right axis deviation. All of the following conditions are possible except?

Accepted Answer

Ostium primum

Answer

Atrial septal defect

Answer

Mitral stenosis

Answer

Pulmonary thromboembolism

Question 4

A 62-year-old male with underlying COPD develops a viral upper respiratory infection and begins taking an over-the-counter decongestant. Shortly thereafter he experiences palpitations and presents to the emergency room, where the following rhythm strip is obtained, demonstrating what rhythm?

Accepted Answer

Atrial flutter with 4:1 atrioventricular block

Answer

Normal sinus rhythm

Answer

Junctional rhythm

Answer

Paroxysmal atrial tachycardia with 2:1 atrioventricular block

Question 5

The following ECG shows:

Accepted Answer

Ventricular bigeminy

Answer

P. pulmonale

Answer

Electrical alternans

Answer

Wrong calibration

Question 6

All of the following are considered minor criteria for infective endocarditis EXCEPT?

Accepted Answer

Evidence of endocardial involvement documented by echocardiography

Answer

Janeway lesions

Answer

Embolic disease

Answer

Osler's nodes

Question 7

Quincke's sign in aortic regurgitation refers to which of the following?

Accepted Answer

Capillary nail bed pulsation

Answer

Pulsation of the uvula in time with the heartbeat

Answer

Prominent retinal artery pulsation

Answer

Pulsating liver in time with the heartbeat

Question 8

The Framingham Risk Score is used to determine which of the following?

Accepted Answer

Cardiovascular mortality risk due to atherosclerosis

Answer

Severity of Congestive Heart Failure (CHF)

Answer

Diagnosis of Congestive Heart Failure (CHF)

Answer

Need for stenting in chronic stable angina

Question 9

A patient with mitral stenosis has developed pulmonary artery hypertension. Which of the following auscultatory findings may be heard?

Accepted Answer

Pan-systolic murmur

Answer

Early diastolic, crescendo murmur

Answer

Mid-systolic, crescendo-decrescendo murmur

Answer

Mid-diastolic, rumbling murmur

Question 10

All of the following features can differentiate between ventricular tachycardia and supraventricular tachycardia EXCEPT?

Accepted Answer

Ventricular rate > 160/min

Answer

QRS duration < 0.14 seconds

Answer

Variable first heart sound

Answer

Relieved by carotid sinus massage

Cardiology — MCQs

Cardiology — MCQs

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