Correct Answer: A

Rationale: The correct answer is Avanafil (Stendra). Avanafil has a rapid onset of action compared to other PDE5 inhibitors, making it suitable for patients experiencing delays in onset and peak of action with other medications like Viagra. Tadalafil (Cialis), Vardenafil (Levitra), and Alprostadil (Caverject) do not offer the same rapid onset of action as Avanafil, making them less suitable for addressing the specific needs of this patient.

Correct Answer: C

Rationale: The correct answer is C: 'A malignant growth of white blood cells.' Leukemia is a type of cancer that affects the blood and bone marrow, leading to an overproduction of abnormal white blood cells. These cells are malignant and impair the normal function of healthy blood cells. Choices A, B, and D are incorrect because leukemia does not involve skin cells or benign growths; instead, it specifically refers to the abnormal proliferation of white blood cells.

Correct Answer: B

Rationale: The correct answer is B: Pain and tissue damage. Compartment syndrome occurs due to increased pressure within the muscle compartments, leading to pain and tissue damage. Hemorrhage (choice A) is not a typical complication of compartment syndrome. Increased limb function (choice C) is not a complication but rather a potential improvement if the condition is managed appropriately. Chronic kidney disease (choice D) is unrelated to compartment syndrome.

Correct Answer: A

Rationale: In this scenario, the most crucial action for the nurse to take is to observe the patient taking the medications. This ensures that the patient is actually consuming the prescribed antitubercular drugs, addressing the issue of nonadherence directly. Administering the medications parenterally (intravenously or intramuscularly) is not necessary unless there are specific medical reasons requiring this route of administration. Instructing the family on the medication regimen is important for support but may not directly address the patient's nonadherence. Counting the number of tablets in the bottle daily is not as effective as directly observing the patient taking the medications to ensure compliance.

Correct Answer: B

Rationale: Recurrent infections are a hallmark symptom of immunodeficiency. Individuals with impaired immune systems are more susceptible to recurrent infections due to their compromised ability to fight off pathogens. Anemia (Choice A) is not a direct symptom of immunodeficiency but can be a consequence of chronic diseases. Hypersensitivity (Choice C) refers to exaggerated immune responses rather than impaired immune function. Autoantibody production (Choice D) is not typically a primary symptom of immunodeficiency but may be seen in certain autoimmune conditions.