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NEET MDS Quiz - Practice Test

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Practice Test

Pharmacology - 3 Questions

1
Pharmacology

Why are topical antifungal agents, such as clotrimazole troches, commonly used for oral candidiasis?
1). Because they have a systemic effect on all fungal infections
2). Because they provide immediate systemic relief of symptoms
3). Because they deliver the antifungal directly to the site of infection with minimal systemic absorption
4). Because they increase the production of antibodies against fungal antigens

📝 Explanation:

Topical antifungal agents such as clotrimazole troches and nystatin act directly at the site of oral Candida infection. Local drug delivery produces high concentrations at the infected mucosa while minimizing systemic absorption, reducing adverse effects and drug interactions. They are the preferred treatment for uncomplicated oral candidiasis.

2
Pharmacology

Dopamine is preferred in treatment of shock because of 

1)  Renal Vasodilatory effect
2)  Increased Cardiac Output
3)  Peripheral Vasoconstriction
4)  Prolonged action

📝 Explanation:

Dopamine as a first line of drug in patients with shock 

Dopamine in low doses can dilate renal vasculature therefore maintaining glomerular filtration.

Activates adenylate cyclase - cAMP – relaxation of vascular smooth muscle

3
Pharmacology

The administration of penicillin G along with probenacid results in
1. increased excretion of probenacid in the feces and perspiration
2. increased excretion of probenacid in urine
3. increased metabolism of penicillin G
4. decreased renal excretion of penicillin G

📝 Explanation:

The administration of penicillin G along with probenacid results in decreased renal excretion of penicillin G

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