Correct Answer: A

Rationale: The correct answer is A: It is moderately loud. A grade 4-intensity murmur indicates a moderately loud murmur that is readily heard with the stethoscope lightly on the chest. This intensity suggests a significant level of turbulence in blood flow, typically indicating a more pronounced cardiac abnormality. Explanation for why other choices are incorrect: B: It can be heard with the stethoscope off the chest - This is incorrect because a murmur would not be audible without the stethoscope. C: It can be heard with the stethoscope partially off the chest - This is incorrect as a murmur would still require direct contact with the chest for auscultation. D: It is associated with a "thrill" - This is incorrect as a thrill is a palpable vibration indicating turbulent blood flow and is not directly related to murmur intensity.

Correct Answer: B

Rationale: The correct answer is B: A sebaceous cyst. A sebaceous cyst typically presents as a lump underneath the skin that can be squeezed to release a cheesy substance, consistent with Jacob's description. The formation of a prominent dimple when gently pinched is characteristic of a cyst, indicating it is filled with fluid or semi-solid material. Sebaceous cysts are usually benign and can grow slowly over time. Incorrect choices: A: An enlarged lymph node - Unlikely as lymph nodes are typically not associated with cheesy discharge or the formation of a dimple when pinched. C: An actinic keratosis - Unlikely as actinic keratosis is a precancerous skin condition caused by sun exposure, not presenting with cheesy discharge or a dimple. D: A malignant lesion - Unlikely as malignant lesions usually do not produce cheesy discharge and are more aggressive in growth compared to a sebaceous cyst.

Correct Answer: D

Rationale: The correct answer is D, cardiomyopathy. Cardiomyopathy is a disease of the heart muscle that can lead to an increase in the size and strength of the heart muscle, resulting in an increased amplitude of the apical impulse. This is due to the heart working harder to pump blood effectively. Hypothyroidism (choice A) typically does not cause an increase in the amplitude of the apical impulse. Aortic stenosis (choice B) and mitral stenosis (choice C) both result in pressure or volume overload on specific chambers of the heart, but they do not directly lead to diffuse and increased amplitude of the apical impulse like cardiomyopathy does. In summary, an increase in the amplitude of the apical impulse is more likely to be caused by cardiomyopathy due to the increased workload on the heart muscle, compared to the other conditions provided in the choices.

Correct Answer: C

Rationale: The purpose of the expanded assessment when using the LAPSS is to determine whether there are other possible causes of the patient's signs and symptoms. This is because LAPSS primarily focuses on identifying stroke symptoms, so the expanded assessment helps rule out other potential conditions. Option A is incorrect because LAPSS does not primarily assess circulation. Option B is incorrect because LAPSS is not specifically designed to determine compartment syndrome. Option D is incomplete and does not provide any information to support it as the correct answer.

Correct Answer: A

Rationale: The correct answer is A because in an older adult with an indwelling urinary catheter, a fever >100°F can be a sign of urinary tract infection (UTI) or urosepsis. Given her acute decline in mental status and fever, empiric antibiotic therapy is warranted to treat a potential infection. Choice B is incorrect because older adults with indwelling catheters are at increased risk for UTIs and bloodstream infections. Choice C is incorrect as obtaining a urine culture is important to confirm the diagnosis and guide appropriate antibiotic therapy. Choice D is incorrect as the duration of antibiotic treatment for a UTI is typically longer than 3 days.