Correct Answer: C

Rationale: The correct answer is C: His blood pressure is likely a physiologic response to traumatic head injury. Rationale: 1. Physiologic response: Traumatic head injury can lead to autonomic dysregulation, causing increased sympathetic activity and elevated blood pressure to maintain cerebral perfusion. 2. Compensation mechanism: The body may increase blood pressure in response to hypotension to ensure vital organs receive adequate blood flow. 3. Treatment consideration: Understanding that elevated blood pressure can be a compensatory mechanism helps guide appropriate management strategies for traumatic head injury patients. Summary: A: Vasopressors can be used in traumatic head injury depending on the specific situation, and they are not always contraindicated. B: While hypotension can worsen outcomes in traumatic head injury, this choice overstates the risk without providing context. D: Identifying the cause of hypotension is crucial in managing traumatic head injury patients and should not be disregarded in favor of stabilizing the head injury.

Correct Answer: D

Rationale: Step 1: The presence of bile in vomitus suggests that the vomit originated from the small intestine or stomach, indicating an obstruction in the pyloric region. Step 2: Pyloric stenosis is a condition characterized by narrowing of the opening from the stomach to the small intestine, leading to projectile vomiting with bile. Step 3: Therefore, the presence of bile in vomitus suggests pyloric stenosis, making option D the correct answer. Summary: Option A is incorrect because vomiting preceding pain does not necessarily indicate a surgical abdomen. Option B is incorrect as the severity of symptoms is not solely based on age. Option C is incorrect as some surgical abdomens can present with vomiting as a primary symptom.

Correct Answer: C

Rationale: The correct answer is C: Fluoroquinolone antibiotics. In this case, the patient presents with signs of sepsis and urinary retention, which are indicative of a possible prostatic abscess. Administering fluoroquinolone antibiotics could potentially mask the symptoms and delay further evaluation and treatment of the abscess. This can lead to worsening infection and sepsis. Therefore, the AGACNP should avoid prescribing fluoroquinolones until further evaluation is done to confirm or rule out a prostatic abscess. Incorrect choices: A: Digital prostate examination - This could help in assessing the prostate for abscess or other abnormalities. B: Urinary catheterization - Necessary to relieve bladder distention and assess urine output. D: Drainage of prostate abscess - If confirmed, drainage would be the appropriate intervention to address the abscess.

Correct Answer: D

Rationale: Step 1: Atony of the uterus is the most common cause of primary postpartum hemorrhage due to inadequate uterine contractions. Step 2: Trauma of the genital tract can lead to bleeding but is not as common as atony of the uterus in postpartum hemorrhage. Step 3: Blood coagulation disorder can contribute to excessive bleeding but is not the primary cause of postpartum hemorrhage. Step 4: Prolonged 3rd stage can result in postpartum hemorrhage but is typically secondary to uterine atony.

Correct Answer: C

Rationale: The correct answer is C: His blood pressure is likely a physiologic response to traumatic head injury. Rationale: 1. Physiologic response: Traumatic head injury can lead to autonomic dysregulation, causing increased sympathetic activity and elevated blood pressure to maintain cerebral perfusion. 2. Compensation mechanism: The body may increase blood pressure in response to hypotension to ensure vital organs receive adequate blood flow. 3. Treatment consideration: Understanding that elevated blood pressure can be a compensatory mechanism helps guide appropriate management strategies for traumatic head injury patients. Summary: A: Vasopressors can be used in traumatic head injury depending on the specific situation, and they are not always contraindicated. B: While hypotension can worsen outcomes in traumatic head injury, this choice overstates the risk without providing context. D: Identifying the cause of hypotension is crucial in managing traumatic head injury patients and should not be disregarded in favor of stabilizing the head injury.