Correct Answer: A

Rationale: Substernal retractions indicate respiratory distress in a sickle-cell client, which can be a sign of acute chest syndrome. This condition is a serious complication of sickle-cell anemia characterized by chest pain, fever, cough, and shortness of breath. Reporting this symptom promptly is crucial for timely intervention. Choice B, hematuria, is not typically associated with acute chest syndrome but may indicate other issues such as a urinary tract infection. Choice C, a temperature of 37.9°C (100.2°F), is slightly elevated but not a specific indicator of acute chest syndrome. Choice D, sneezing, is not a typical symptom of acute chest syndrome and would not warrant immediate reporting to the provider in this context.

Correct Answer: A

Rationale: A positive Trousseau's sign is a key finding in clients with hypocalcemia, indicating neuromuscular irritability. The other choices are not typically associated with hypocalcemia. Increased deep tendon reflexes are more indicative of hypercalcemia. Hyperactive bowel sounds can be seen in hyperactive bowel conditions or diarrhea, not specifically related to hypocalcemia. A weak, thready pulse may indicate cardiovascular issues, such as dehydration, but it is not a typical finding in hypocalcemia.

Correct Answer: B

Rationale: Shoulder presentation is a contraindication for oxytocin because it can increase the risk of complications during labor, such as shoulder dystocia. Diabetes mellitus (Choice A) is not a contraindication for the use of oxytocin. Postterm with oligohydramnios (Choice C) and chorioamnionitis (Choice D) may actually necessitate the use of oxytocin to induce or augment labor for the well-being of the mother and baby.

Correct Answer: D

Rationale: The correct answer is D because clients taking spironolactone should have their potassium levels checked regularly. Spironolactone is a potassium-sparing diuretic, meaning it helps the body retain potassium and can lead to hyperkalemia if levels become too high. Choices A, B, and C are incorrect because avoiding foods high in potassium, sodium, or monitoring blood pressure are not specific to the teaching related to spironolactone.

Correct Answer: C

Rationale: The correct answer is C. A potassium level of 2.8 mEq/L is low and should be reported to the provider. Furosemide can cause potassium depletion, leading to hypokalemia. Low potassium levels can result in cardiac dysrhythmias, which is a serious concern in clients with heart failure. Choices A, B, and D are within normal ranges and do not require immediate reporting. Sodium level of 140 mEq/L, heart rate of 82/min, and oxygen saturation of 95% are all acceptable findings.