A 60-year-old male presents to his primary care provider reporting chest pain. He is diagnosed with atherosclerosis. This disease results in:

Abnormally dilated arteries and veins

Arterial wall thinning and weakening

Autonomic nervous system imbalances

Abnormal thickening and hardening of vessel walls

Answer and Explanation

The Correct Answer is D

Choice A reason: Abnormally dilated arteries and veins are not a result of atherosclerosis. They are a sign of aneurysms or varicose veins, which are caused by different factors.

Choice B reason: Arterial wall thinning and weakening are not a result of atherosclerosis. They are a sign of arteriosclerosis, which is a general term for the loss of elasticity and flexibility of the arteries.

Choice C reason: Autonomic nervous system imbalances are not a result of atherosclerosis. They are a sign of dysautonomia, which is a disorder of the nervous system that affects the regulation of vital functions.

Choice D reason: Abnormal thickening and hardening of vessel walls are a result of atherosclerosis. They are caused by the accumulation of plaque, which is composed of cholesterol, fatty substances, calcium, and other materials.

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Correct Answer is ["B","C"]

Explanation

Choice A reason: Oliguria is not a forward effect of left ventricular heart failure. It is a backward effect that occurs due to reduced renal perfusion and activation of the renin-angiotensin-aldosterone system.

Choice B reason: Increased heart rate is a forward effect of left ventricular heart failure. It is a compensatory mechanism that occurs due to reduced cardiac output and sympathetic stimulation.

Choice C reason: Wet cough is a forward effect of left ventricular heart failure. It is a sign of pulmonary congestion and edema that result from increased pressure in the pulmonary veins and capillaries.

Choice D reason: Confusion is not a forward effect of left ventricular heart failure. It is a backward effect that occurs due to reduced cerebral perfusion and hypoxia.

Choice E reason: Jugular venous distention is not a forward effect of left ventricular heart failure. It is a backward effect that occurs due to increased pressure in the right atrium and vena cava.

A. No change in affinity of hemoglobin with oxygen B. Decrease in affinity of hemoglobin with oxygen C. Increase in affinity of hemoglobin with oxygen D. Decrease in blood CO2

Correct Answer is B

Explanation

Choice A reason: Respiratory acidosis does not cause no change in affinity of hemoglobin with oxygen. It causes a decrease in affinity of hemoglobin with oxygen, which means that hemoglobin releases more oxygen to the tissues. This is known as the Bohr effect, which is a physiological response to low pH and high CO2 levels.

Choice B reason: Respiratory acidosis causes a decrease in affinity of hemoglobin with oxygen, which means that hemoglobin releases more oxygen to the tissues. This is the correct statement that describes the expected finding in this patient. The decrease in affinity of hemoglobin with oxygen is a compensatory mechanism that tries to restore the oxygen balance in the body.

Choice C reason: Respiratory acidosis does not cause an increase in affinity of hemoglobin with oxygen. It causes a decrease in affinity of hemoglobin with oxygen, which means that hemoglobin releases more oxygen to the tissues. An increase in affinity of hemoglobin with oxygen would mean that hemoglobin holds on to oxygen more tightly, which would worsen the hypoxia in the patient.

Choice D reason: Respiratory acidosis does not cause a decrease in blood CO2. It causes an increase in blood CO2, which is the primary cause of the low pH. A decrease in blood CO2 would indicate respiratory alkalosis, which is a condition of high pH and low CO2 levels.

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A 60-year-old male presents to his primary care provider reporting chest pain. He is diagnosed with atherosclerosis. This disease results in:

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Naxlex Comprehensive Predictor Exams

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Correct Answer is ["B","C"]

Explanation

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Correct Answer is B

Explanation

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