Hypertensive Vascular Disease — MCQs
Which of the following is not associated with pulmonary arterial hypertension?
Which type of necrosis is characterized by deposition of immune complexes and fibrin in the walls of blood vessels?
A hypertensive patient presents with excruciating chest pain and unequal radial pulses. Which of the following is the correct management for this patient?
Which of the following is not a sign of cerebral compression?
Monckeberg's calcific sclerosis primarily affects which layer of the medium-sized muscular arteries?
A woman shows symptoms of massive pulmonary thromboembolism. Based on the gross appearance of the liver autopsy, which of the following statements best characterizes the patient’s condition?
Pregnancy is contraindicated in which cardiac disease?
The choice of antihypertensive medication also depends upon the co-morbid illness of the patient, and all of the following recommendations have been made except:
Least common cause for bilateral pedal edema
In which condition is the 'Picture frame vertebra' seen?
Hypertensive Vascular Disease Indian Medical PG Practice Questions and MCQs
Question 1: Which of the following is not associated with pulmonary arterial hypertension?
- A. Cor - pulmonale
- B. Left ventricular hypertrophy (Correct Answer)
- C. Mitral Stenosis
- D. Interstitial lung disease
Explanation: ***Left ventricular hypertrophy*** - **Left ventricular hypertrophy** is typically caused by conditions that increase the workload on the left ventricle, such as **systemic hypertension** or **aortic stenosis** [1]. - Pulmonary arterial hypertension directly affects the **pulmonary vasculature**, leading to increased pressure in the pulmonary circuit and ultimately right heart strain, not left ventricular hypertrophy. *Cor pulmonale* - **Cor pulmonale** is defined as **right ventricular enlargement** secondary to lung disease or pulmonary vascular disease. - Pulmonary arterial hypertension increases the afterload on the right ventricle, causing it to dilate and hypertrophy, eventually leading to **right heart failure** (cor pulmonale) [2]. *Mitral Stenosis* - **Mitral stenosis** causes an obstruction to blood flow from the left atrium to the left ventricle, leading to increased pressure in the left atrium and pulmonary veins. - This elevated pressure can be transmitted backward into the pulmonary arteries, leading to **pulmonary arterial hypertension** [3]. *Interstitial lung disease* - **Interstitial lung disease** (ILD) can lead to destruction and remodeling of the pulmonary capillaries, increasing pulmonary vascular resistance [2]. - This increased resistance causes the pulmonary arterial pressure to rise, resulting in **pulmonary arterial hypertension**.
Question 2: Which type of necrosis is characterized by deposition of immune complexes and fibrin in the walls of blood vessels?
- A. Liquefactive necrosis
- B. Coagulative necrosis
- C. Caseous necrosis
- D. Fibrinoid necrosis (Correct Answer)
Explanation: ***Fibrinoid necrosis*** - This type of necrosis is classically associated with **immune-mediated vascular damage**, where antigen-antibody complexes are deposited in arterial walls [2]. - The microscopic appearance is characterized by bright pink, amorphous material composed of **fibrin and immune complexes**, giving a fibrin-like staining pattern [1]. *Liquefactive necrosis* - Characterized by the **dissolution of dead cells into a viscous liquid mass**, often seen in bacterial infections or brain infarcts. - The necrotic tissue is replaced by inflammatory cells and fluid, rather than immune complex deposits. *Coagulative necrosis* - Occurs due to **ischemia**, leading to protein denaturation and preservation of cell outlines for a period. - It does not involve the deposition of immune complexes or fibrin in vessel walls. *Caseous necrosis* - A form of coagulative necrosis associated with **tuberculosis**, characterized by a friable, "cheese-like" appearance. - It primarily involves granulomatous inflammation and macrophage accumulation, not immune complex deposition in blood vessels. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Diseases of Infancy and Childhood, pp. 514-518. [2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Diseases of the Immune System, pp. 214-242.
Question 3: A hypertensive patient presents with excruciating chest pain and unequal radial pulses. Which of the following is the correct management for this patient?
- A. Emergency surgical repair (Correct Answer)
- B. BP control and monitoring
- C. Stenting
- D. Balloon dilatation
Explanation: ***Emergency surgical repair*** - The combination of **excruciating chest pain**, a history of **hypertension**, and **unequal radial pulses** is highly suggestive of an **acute aortic dissection**. - **Unequal radial pulses** indicate involvement of the **ascending aorta** (Type A dissection), affecting the brachiocephalic or subclavian arteries that branch proximally from the aortic arch. - **Type A aortic dissections**, involving the ascending aorta, are life-threatening emergencies requiring immediate **surgical repair** to prevent rupture, cardiac tamponade, aortic regurgitation, and organ malperfusion. *BP control and monitoring* - While **blood pressure control** is a crucial initial step in managing aortic dissection to reduce shear stress on the aorta and prevent propagation, it is insufficient as the primary treatment for an **ascending (Type A) aortic dissection**. - Continuous monitoring is necessary but cannot resolve a progressing dissection that poses an immediate threat to life. - Medical management alone is reserved for **uncomplicated Type B dissections**. *Stenting* - **Endovascular stenting** (thoracic endovascular aortic repair, TEVAR) is primarily used for **Type B aortic dissections** (involving the descending aorta) in stable patients or those with complicated features. - It is generally not the first-line treatment for **Type A dissections** due to the anatomical challenges and urgent need for surgical repair in this location. *Balloon dilatation* - **Balloon dilatation** or angioplasty is a procedure used to open narrowed arteries, typically in the context of atherosclerotic disease (e.g., coronary artery disease or peripheral artery disease). - It has no role in the management of an **aortic dissection**, which involves a tear in the aortic wall rather than a simple narrowing.
Question 4: Which of the following is not a sign of cerebral compression?
- A. Papilloedema
- B. Vomiting
- C. Bradycardia
- D. Hypotension (Correct Answer)
Explanation: ***Hypotension*** - **Hypotension** (low blood pressure) is generally not a direct sign of cerebral compression; rather, **hypertension** (Cushing's triad) is associated with increased intracranial pressure. - While systemic hypotension can reduce cerebral perfusion pressure, it is not a primary compensatory mechanism against rising ICP. *Bradycardia* - **Bradycardia** (slow heart rate) is a key component of the **Cushing's reflex**, which is a physiological response to increased intracranial pressure (ICP) aiming to maintain cerebral perfusion. - It occurs alongside hypertension and irregular respiration in the Cushing's triad. *Papilloedema* - **Papilloedema** refers to swelling of the optic disc due to increased intracranial pressure (ICP), which impedes venous return from the retina. - It is a significant and often late sign of cerebral compression or sustained elevation of ICP. *Vomiting* - **Vomiting**, particularly without nausea and often described as **projectile vomiting**, is a common symptom of increased intracranial pressure. - It results from the stimulation of the vomiting center in the brainstem by the elevated pressure.
Question 5: Monckeberg's calcific sclerosis primarily affects which layer of the medium-sized muscular arteries?
- A. Intima
- B. Media (Correct Answer)
- C. Adventitia
- D. Intima and Media
Explanation: ***Media*** - Monckeberg's calcific sclerosis, also known as **medial calcinosis**, specifically involves the **tunica media** of medium-sized muscular arteries. - This condition is characterized by **calcific deposits** within the smooth muscle layer of the artery wall, without significant luminal narrowing. - Classic "**tram-track**" or "railroad track" appearance on imaging due to medial calcification. *Intima* - The **intima** is primarily affected in **atherosclerosis**, where plaque formation occurs within this innermost layer. - Monckeberg's sclerosis is distinct from atherosclerosis and does not involve significant intimal thickening or lipid deposition. *Adventitia* - The **adventitia** is the outermost layer of the arterial wall, providing structural support and containing nerves and vasa vasorum. - Monckeberg's calcification does not typically involve this layer. *Intima and Media* - While Monckeberg's sclerosis **exclusively affects the media**, this option incorrectly suggests intimal involvement. - The pathognomonic feature of Monckeberg's is its **restriction to the medial layer**, distinguishing it from atherosclerosis.
Question 6: A woman shows symptoms of massive pulmonary thromboembolism. Based on the gross appearance of the liver autopsy, which of the following statements best characterizes the patient’s condition?
- A. Primary liver angiosarcoma
- B. Locally invaded hepatocellular carcinoma
- C. Colonic adenocarcinoma with liver metastasis
- D. Chronic passive congestion with centrilobular necrosis (Correct Answer)
Explanation: ***Colonic adenocarcinoma with metastasis*** - The presence of **massive pulmonary thromboembolism** often indicates **underlying malignancy** [2], particularly with **colonic adenocarcinoma** known to metastasize to the liver [1]. - This condition may present with **liver lesions** at autopsy, consistent with metastatic disease [1], supporting this diagnosis. *Metastasis from PE* - Pulmonary embolism (PE) itself does not typically give rise to **metastatic disease**; instead, it commonly arises from **deep vein thrombosis** (DVT) [2]. - This onfuses the cause of PE with its potential effects, lacking the **specificity** of a primary cancer origin. *Locally invaded hepatocellular carcinoma* - This option indicates a primary liver cancer impacting the liver directly, which would not cause **massive pulmonary thromboembolism** as its primary feature. - While hepatocellular carcinoma can cause some vascular complications, it does not correlate with **colonic adenocarcinoma** or metastatic patterns indicative of PE. *Angiosarcoma* - Though angiosarcoma is a **primary liver tumor**, it is rare and does not typically present with **massive pulmonary embolism** as a hallmark manifestation. - This type of cancer generally has a different clinical picture and distinct risk factors compared to **colonic adenocarcinoma**, making it an **unlikely option** in this context. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Neoplasia, p. 282. [2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Lung, p. 705.
Question 7: Pregnancy is contraindicated in which cardiac disease?
- A. Mitral stenosis
- B. Primary pulmonary hypertension (Correct Answer)
- C. VSD
- D. Mitral regurgitation
Explanation: ***Primary pulmonary hypertension*** - Pregnancy in **primary pulmonary hypertension (PPH)** is an **absolute contraindication** (WHO Class IV cardiac disease) with a maternal mortality rate of 30-50%, often due to right heart failure precipitated by the physiological changes of pregnancy. - The increased **cardiac output**, blood volume, systemic vasodilation, and elevated pulmonary vascular resistance during gestation can severely worsen pulmonary arterial pressures. - The hemodynamic changes of pregnancy, labor, and postpartum period are poorly tolerated in PPH, making it one of the highest-risk cardiac conditions. *Mitral stenosis* - While pregnancy can exacerbate **mitral stenosis**, leading to pulmonary edema, it is not an absolute contraindication for pregnancy with careful management. - Severe mitral stenosis (WHO Class III) is a relative contraindication, but maternal mortality is significantly lower (around 1%) compared to primary pulmonary hypertension. *VSD* - **Ventricular septal defect (VSD)** generally carries a low risk during pregnancy, especially if it is small and not associated with pulmonary hypertension or heart failure. - Close monitoring is required to prevent complications like paradoxical embolism, but it is rarely a contraindication. *Mitral regurgitation* - **Mitral regurgitation** is often well-tolerated in pregnancy because the systemic vasodilation typical of pregnancy reduces afterload, which can actually decrease the severity of regurgitation. - It is one of the better-tolerated valvular heart diseases during gestation.
Question 8: The choice of antihypertensive medication also depends upon the co-morbid illness of the patient, and all of the following recommendations have been made except:
- A. In hypertensive patients with gout, diuretics are the first-line treatment. (Correct Answer)
- B. In hypertensive patients with heart failure, ACE inhibitors may be preferred
- C. In hypertensive patients with migraine, beta blockers are an excellent choice
- D. In hypertensive patients with peripheral vascular disease, calcium channel blockers are recommended
Explanation: ***In hypertensive patients with gout, diuretics are the first-line treatment.*** * This statement is incorrect because **diuretics**, particularly **thiazide diuretics**, can **elevate uric acid levels** and precipitate or worsen gout attacks. * Therefore, they are generally **contraindicated or used with caution** in patients with gout, not recommended as first-line treatment. *In hypertensive patients with heart failure, ACE inhibitors may be preferred* * **ACE inhibitors** are a cornerstone of heart failure treatment due to their ability to **improve cardiac remodeling**, reduce mortality, and alleviate symptoms. * They are often preferred for their **vasodilatory effects** and ability to prevent volume overload, which benefits patients with heart failure. *In hypertensive patients with migraine, beta blockers are an excellent choice* * **Beta-blockers**, such as propranolol, are effective in both **blood pressure control** and the **prophylaxis of migraines** [1]. * This makes them an excellent choice for a hypertensive patient who also suffers from migraines, offering a dual therapeutic benefit [1]. *In hypertensive patients with peripheral vascular disease, calcium channel blockers are recommended* * **Calcium channel blockers (CCBs)**, especially dihydropyridines like amlodipine, are beneficial in peripheral vascular disease (PVD) due to their **vasodilatory effects**. * They can **improve blood flow** to the extremities, which is crucial in PVD, without negatively impacting symptoms like claudication.
Question 9: Least common cause for bilateral pedal edema
- A. CKD
- B. Chronic vascular insufficiency (Correct Answer)
- C. CLD
- D. HF with reduced ejection fraction
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].
Question 10: In which condition is the 'Picture frame vertebra' seen?
- A. Paget disease (Correct Answer)
- B. Osteopetrosis (marble bone disease)
- C. Ankylosing spondylitis (AS)
- D. Osteoporosis
Explanation: ***Paget disease*** - The "picture frame vertebra" sign is a classic radiographic finding in **Paget disease**, characterized by **cortical thickening** and sclerosis around the vertebral body circumference, resembling a picture frame. - This appearance is due to the disordered bone remodeling processes (increased osteoclastic bone resorption followed by disorganized osteoblastic new bone formation) characteristic of Paget disease. *Osteopetrosis (marble bone disease)* - Osteopetrosis is characterized by **increased bone density** due to defective osteoclast function, leading to bones that are dense but brittle. - It does not typically present with the specific "picture frame" appearance of individual vertebrae, but rather with diffuse sclerosis of bones. *Ankylosing spondylitis (AS)* - Ankylosing spondylitis primarily affects the **axial skeleton**, causing inflammation and eventual fusion of the vertebrae (leading to a "bamboo spine" appearance). - While it involves the spine, it does not produce the "picture frame" vertebral sign seen in Paget disease. *Osteoporosis* - Osteoporosis is characterized by **reduced bone mass** and microstructural deterioration of bone tissue, leading to increased bone fragility and fracture risk. - Radiographically, it shows **decreased bone density** and possible vertebral compression fractures, which is the opposite of the increased bone density and cortical thickening seen in the "picture frame" sign.
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