Superinfections are more common with:

Correct Answer: D

Rationale: The correct answer is D because using antibiotic combinations covering both gram positive and gram negative bacteria can disrupt the balance of normal flora in the body, leading to superinfections. Gram positive and gram negative bacteria have different susceptibility patterns, so using a combination of antibiotics increases the likelihood of killing off a wider range of bacteria, including the beneficial ones. This disruption paves the way for opportunistic pathogens to overgrow and cause superinfections. Choices A, B, and C are incorrect because narrow spectrum antibiotics target specific bacteria, short courses of antibiotics reduce the risk of resistance and overgrowth, and antibiotics completely absorbed from the small intestines have minimal impact on gut flora compared to systemic antibiotics.

Correct Answer: B

Rationale: The correct answer is B: Orthostatic hypotension. Terazosin is an alpha-1 blocker commonly used to treat benign prostatic hypertrophy. It works by relaxing smooth muscle in the prostate and bladder neck. This relaxation can lead to vasodilation and subsequently cause a drop in blood pressure. Orthostatic hypotension is a common adverse reaction of alpha-1 blockers due to this mechanism. The other choices, A: Erectile dysfunction, C: GI distress, and D: Gynecomastia are not typically associated with terazosin use. Erectile dysfunction can actually be improved with alpha-1 blockers as they relax smooth muscle in the prostate, allowing for easier urination and potentially improved sexual function. GI distress and gynecomastia are not common side effects of terazosin.

Correct Answer: D

Rationale: The correct answer is D: Pulmonary edema. Furosemide is a loop diuretic that is commonly used to treat pulmonary edema by reducing fluid overload in the lungs. It works by inhibiting the reabsorption of sodium and water in the loop of Henle in the kidneys, leading to increased urine output. This helps to alleviate the congestion and fluid accumulation in the lungs seen in pulmonary edema. Mannitol, on the other hand, is typically used for cerebral edema due to its osmotic diuretic properties. Choices A, B, and C are incorrect as furosemide is not the preferred diuretic for cardiac, cerebral, or cirrhotic edema.

Correct Answer: A

Rationale: Desmopressin reduces urine volume by mimicking the effects of antidiuretic hormone (ADH). In central diabetes insipidus, there is a deficiency of ADH production, so desmopressin can help by supplementing ADH. In renal diabetes insipidus, the kidneys do not respond to ADH, so desmopressin would not be effective. Therefore, the correct answer is A. Choice B is incorrect because desmopressin does not address the underlying issue of kidney insensitivity to ADH. Choice C is incorrect because desmopressin is effective only in central diabetes insipidus. Choice D is incorrect because desmopressin is effective in central diabetes insipidus.

Correct Answer: B

Rationale: The correct answer is B: To note hematoma formation. After an angiography procedure, there is a risk of bleeding under the pressure dressing, leading to hematoma formation. By assessing the dressing frequently, the nurse can detect any signs of hematoma early, preventing complications such as compromised circulation or infection. Checking for frank bleeding (Choice A) is important but less likely to occur under a pressure dressing. Arterial occlusion (Choice C) is a serious but less immediate concern post-angiography. Assessing peripheral pulses (Choice D) is also important but not specific to monitoring for hematoma formation.