Correct Answer: A

Rationale: The correct action is to report the ulcer to the admitting care provider first. This is essential because the ulcer could be a sign of an underlying infection or condition that needs immediate attention, especially in a hospitalized patient with pneumonia. Reporting the ulcer ensures prompt evaluation and appropriate treatment. The other options are incorrect because teaching about STD prevention and asking about syphilis assume the cause of the ulcer is related to a sexually transmitted infection, which may not be the case in this scenario. Additionally, cleaning the ulcer without proper assessment and diagnosis by a healthcare provider can lead to complications or delay in appropriate treatment.

Correct Answer: B

Rationale: The correct answer is B: Pericardial friction rub. This is a key diagnostic sign of pericarditis due to the inflammation of the pericardial layers causing a rough, grating sound heard upon auscultation. Precordial pain (A) is a common symptom but not a specific diagnostic sign. Hypotension (C) and rapid/labored respirations (D) are not typically associated with pericarditis. Therefore, the presence of a pericardial friction rub is crucial in confirming the diagnosis of pericarditis.

Correct Answer: C

Rationale: The correct answer is C because performing chest physiotherapy (CPT) at least two hours after meals helps prevent aspiration during the procedure. This timing reduces the risk of vomiting or regurgitation of food during CPT, which could lead to aspiration pneumonia. Slapping the chest wall gently (A) may not effectively clear secretions. Using vibration techniques (B) is not typically recommended for routine CPT. Planning apical drainage at the beginning of the session (D) is not necessary as it is not a standard practice for CPT.

Correct Answer: B

Rationale: The correct answer is B: Monitor temperature every 4hrs. This is crucial in detecting signs of urinary tract infection as fever is a common symptom. Monitoring temperature regularly allows for early detection and appropriate intervention. A: Encouraging the client to breathe deeply and cough every 2hrs is a measure to prevent respiratory complications postoperatively, not related to UTI detection. C: Splinting the incision when repositioning the client is important for wound care, not for detecting UTI. D: Irrigating tubes as ordered is a specific intervention for tube care, not for monitoring UTI symptoms.

Correct Answer: A

Rationale: Step 1: Pulmonary edema is caused by fluid accumulation in the lungs due to increased pressure in the pulmonary vasculature. Step 2: Decreased left ventricular pumping leads to congestive heart failure, causing increased pressure in pulmonary circulation. Step 3: This increased pressure forces fluid from the capillaries into the alveoli, causing pulmonary edema. Step 4: Increased left atrial contractility (B) would not directly lead to pulmonary edema. Step 5: Decreased right ventricular elasticity (C) and increased right atrial pressure (D) are not directly related to the pathophysiology of pulmonary edema. Summary: The correct answer is A because decreased left ventricular pumping directly contributes to the increased pressure in the pulmonary circulation that leads to pulmonary edema. Choices B, C, and D do not align with the primary underlying disorder of pulmonary edema.