Nursing Elites

1. What are three major causes of atherosclerosis?

• A. Hyperthyroidism, underweight, and poor appetite
• B. High blood cholesterol, high blood pressure, and cigarette smoking
• C. Constipation, peptic ulcer disease, and pancreatitis
• D. Kidney failure, edema, and sodium retention

Correct answer: B

Rationale: The correct answer is B: High blood cholesterol, high blood pressure, and cigarette smoking are three major causes of atherosclerosis. Atherosclerosis is mainly attributed to the buildup of cholesterol-rich plaques in the arteries, high blood pressure causing damage to the arterial walls, and the harmful effects of cigarette smoking on blood vessels. Choices A, C, and D are incorrect because they do not directly relate to the primary causes of atherosclerosis.

2. A client with type 1 diabetes is diagnosed with diabetic ketoacidosis and initially treated with intravenous fluids followed by an IV bolus of regular insulin. The nurse anticipates that the practitioner will prescribe a continuous infusion of insulin of:

• A. Novolin L insulin
• B. Novolin R insulin
• C. Novolin N insulin
• D. Novolin U insulin

Correct answer: B

Rationale: The correct answer is Novolin R (Regular insulin) because it is used for continuous infusion to treat diabetic ketoacidosis. Novolin R has a rapid onset of action, making it suitable for this acute situation. Novolin L insulin (Choice A) is not typically used for continuous infusion in diabetic ketoacidosis. Novolin N insulin (Choice C) is an intermediate-acting insulin and is not ideal for rapid correction needed in diabetic ketoacidosis. Novolin U insulin (Choice D) is an ultra-long-acting insulin and is not appropriate for the immediate correction required in this scenario.

3. Which potential complication should the nurse assess for in the client with infective endocarditis who has embolization of vegetative lesions from the mitral valve?

• A. Pulmonary embolism
• B. Decreased urine output
• C. Hemoptysis
• D. Deep vein thrombosis

Correct answer: B

Rationale: The correct answer is 'Decreased urine output.' Embolization of vegetative lesions from the mitral valve can cause renal infarction, leading to a decrease in urine output. This complication is due to the obstruction of blood flow to the kidneys. Choices A, C, and D are incorrect because embolization from the mitral valve typically does not directly cause pulmonary embolism, hemoptysis, or deep vein thrombosis.

4. The nurse is aware that norepinephrine is secreted by which endocrine gland?

• A. The pancreas
• B. The adrenal cortex
• C. The adrenal medulla
• D. The anterior pituitary gland

Correct answer: C

Rationale: Norepinephrine is indeed secreted by the adrenal medulla, making choice C the correct answer. The adrenal medulla is part of the adrenal glands, located on top of the kidneys. Norepinephrine is involved in the body's 'fight or flight' response, helping to prepare the body to react to stress. Choices A, B, and D are incorrect as norepinephrine is not secreted by the pancreas, adrenal cortex, or the anterior pituitary gland.

5. What causes hepatic encephalopathy?

• A. Buildup of ammonia in the body
• B. Buildup of urea in the body
• C. Fatty infiltration of the liver
• D. Jaundice

Correct answer: A

Rationale: Hepatic encephalopathy is caused by the buildup of ammonia in the body. Ammonia, a byproduct of protein metabolism, normally gets converted to urea in the liver for excretion. However, in liver dysfunction, such as cirrhosis, the liver cannot effectively convert ammonia to urea, leading to its accumulation in the body and subsequently causing hepatic encephalopathy. Choices B, C, and D are incorrect as they do not directly relate to the pathophysiology of hepatic encephalopathy.

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