Correct Answer: C

Rationale: A weight gain of 2 kg (4.4 lb) in 2 days can indicate fluid retention, which is a sign of worsening heart failure and should be reported. This rapid weight gain suggests a fluid overload, putting the client at risk for complications. A heart rate of 90/min is slightly elevated but not as concerning as a sudden significant weight gain. The serum potassium level of 4.0 mEq/L is within the normal range and does not directly indicate worsening heart failure. A heart rate of 76/min is within the normal range and does not raise immediate concerns related to heart failure.

Correct Answer: A

Rationale: The correct answer is A: Crackles in the lung bases. In a client with pneumonia, crackles in the lung bases can indicate fluid accumulation, suggesting worsening respiratory status. This finding should be reported to the provider for further evaluation and management. Choice B, an oxygen saturation of 95%, is within the normal range and does not require immediate reporting. Choice C, a heart rate of 88/min, is also within normal limits and does not indicate an urgent need for intervention. Choice D, a frequent productive cough, is a common symptom in pneumonia and may not require immediate reporting unless it is severe or worsening. Therefore, crackles in the lung bases are the most concerning finding that warrants prompt attention.

Correct Answer: C

Rationale: The correct answer is C, respiratory depression. When a patient is receiving morphine, respiratory depression is the most concerning side effect because it can lead to serious complications, including respiratory arrest and even death. Monitoring the patient's respiratory status is crucial to ensure early detection of any signs of respiratory depression. Choices A, B, and D are incorrect because although hypotension, bradycardia, and hypertension can occur as side effects of morphine, they are not as immediately life-threatening as respiratory depression in this context.

Correct Answer: C

Rationale: The correct answer is C: aPTT. Monitoring the activated partial thromboplastin time (aPTT) is crucial when a client is receiving heparin therapy. The aPTT reflects the clotting time and helps assess the effectiveness of heparin in preventing clot formation. Keeping the aPTT within the therapeutic range ensures that the medication is working optimally. Choices A, B, and D are incorrect because serum potassium, platelets, and INR are not direct indicators of heparin's effectiveness or therapeutic range.

Correct Answer: C

Rationale: The correct answer is C, Serum albumin level. Monitoring the serum albumin level helps assess the nutritional effectiveness of total parenteral nutrition (TPN). Serum albumin is a protein that reflects the long-term nutritional status of a patient. Serum calcium level (choice A) is not directly related to TPN effectiveness. Blood glucose level (choice B) is important to monitor in diabetic patients but is not the primary indicator of TPN efficacy. Serum sodium level (choice D) is more related to fluid balance and electrolyte status rather than the effectiveness of TPN.