Which of the following medications are going to dilate the coronary arteries and redirect blood flow so that ischemic tissue is oxygenated?

Salmeterol

Aspirin

Digoxin

Nitroglycerin

Answer and Explanation

The Correct Answer is D

Choice A reason: Salmeterol, a long-acting bronchodilator, opens airways in asthma or COPD but doesn’t dilate coronary arteries or improve cardiac ischemia, targeting lungs instead.

Choice B reason: Aspirin prevents clotting by inhibiting platelet aggregation, reducing ischemia risk, but it doesn’t directly dilate coronary arteries or acutely redirect blood flow.

Choice C reason: Digoxin increases cardiac contractility in heart failure, improving output, but it doesn’t dilate coronary vessels or specifically oxygenate ischemic myocardium.

Choice D reason: Nitroglycerin, a vasodilator, relaxes coronary arteries, increasing blood flow to ischemic areas, relieving angina by enhancing oxygen delivery to the heart muscle.

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Correct Answer is B

Explanation

Choice A reason: Lactulose doesn’t lower glucose; it’s a sugar metabolized by gut bacteria, unrelated to blood sugar control in cirrhosis, where glucose issues stem elsewhere.

Choice B reason: In cirrhosis, lactulose traps ammonia in the gut by acidifying it, promoting excretion and reducing toxic levels that cause hepatic encephalopathy, the primary goal.

Choice C reason: Potassium levels aren’t directly reduced by lactulose; it affects ammonia via gut pH, not electrolytes like potassium, which may rise in renal issues.

Choice D reason: Bicarbonate isn’t targeted by lactulose; it’s a buffer altered in acid-base imbalances, not the focus in cirrhosis where ammonia reduction is critical.

A. When your pain is controlled and your serum amylase level decreases B. When you have active bowel sounds and are passing flatus C. As soon as you start to feel hungry you can begin eating D. Oral intake can be started when you are more active

Correct Answer is B

Explanation

Choice A reason: Pain control and lower amylase help, but resuming eating depends on gut function (bowel sounds, flatus), not just lab or pain status.

Choice B reason: Active bowel sounds and flatus indicate gut recovery post-pancreatitis, signaling readiness for oral intake, the most accurate marker for feeding resumption.

Choice C reason: Hunger isn’t a reliable indicator; eating too soon risks pancreatitis worsening if the gut isn’t ready, despite pain or amylase levels.

Choice D reason: Activity level doesn’t assess gut function; eating hinges on bowel recovery (sounds, flatus), not mobility, making this less precise.

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Which of the following medications are going to dilate the coronary arteries and redirect blood flow so that ischemic tissue is oxygenated?

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Naxlex Comprehensive Predictor Exams

Correct Answer is B

Explanation

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Correct Answer is B

Explanation

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