jarvis physical examination and health assessment test bank

Correct Answer: B

Rationale: The correct answer is B: Streptococcus pneumoniae. This bacterium is the most common cause of community-acquired pneumonia in adults due to its prevalence and ability to cause infections in the lungs. It accounts for a significant portion of pneumonia cases worldwide. Staphylococcus aureus (A) is more commonly associated with healthcare-associated pneumonia. Mycoplasma pneumoniae (C) typically causes atypical pneumonia, which tends to be milder and more common in younger individuals. Pseudomonas aeruginosa (D) is more commonly seen in individuals with underlying health conditions or compromised immune systems, rather than in healthy adults with community-acquired pneumonia.

Correct Answer: A

Rationale: The correct answer is A: Fingertips. Fingertips are the most sensitive part of the hand, allowing for accurate temperature assessment. They provide better tactile discrimination and are more sensitive to changes in temperature compared to other parts of the hand. Palms have thicker skin and are less sensitive, making them less ideal for temperature assessment. Backs of fingers and ulnar aspect of the hand are also less sensitive than fingertips and lack the precision needed for accurate temperature detection.

Correct Answer: A

Rationale: Rationale: The correct answer is A: Supraspinatus. This muscle is responsible for initiating abduction movement at the shoulder joint. It is located on the top of the shoulder blade and assists in lifting the arm away from the body. The other choices, B: Infraspinatus, C: Levator scapulae muscle, and D: Subscapularis, are not involved in initiating abduction movement at the shoulder. Infraspinatus is responsible for external rotation, Levator scapulae muscle elevates the scapula, and Subscapularis assists in internal rotation of the shoulder joint.

Correct Answer: C

Rationale: Hyperkalemia is associated with diminished renal function because the kidneys play a crucial role in regulating potassium levels in the body. When renal function is impaired, the kidneys may not be able to excrete excess potassium effectively, leading to elevated potassium levels in the blood. - Choice A (Increase BP) is incorrect because hyperkalemia is not directly associated with increased blood pressure. - Choice B (Alpha-blockers) is incorrect as alpha-blockers are not typically linked to hyperkalemia. - Choice D (Loop diuretics) is incorrect as loop diuretics can actually lower potassium levels, not cause hyperkalemia.

Correct Answer: C

Rationale: The correct answer is C: Stop aspirin and begin apixaban 5 mg twice a day. The rationale is that for stroke risk reduction in nonvalvular atrial fibrillation, anticoagulation therapy with direct oral anticoagulants (DOACs) like apixaban is preferred over antiplatelet therapy like aspirin. DOACs have been shown to be more effective in reducing stroke risk with a lower bleeding risk compared to warfarin. Choice A is incorrect as aspirin alone is not sufficient for stroke prevention in atrial fibrillation. Choice B is incorrect as warfarin has more monitoring requirements and potential drug interactions compared to DOACs like apixaban. Choice D is incorrect as aspirin and apixaban together are not recommended due to increased bleeding risk.