Correct Answer: A

Rationale: The correct answer is A: Platelet count. Platelet count helps assess clotting abnormalities that could cause petechiae and ecchymoses. Petechiae and ecchymoses are often associated with bleeding disorders, so it is crucial to evaluate the platelet count to determine if there is a deficiency in platelets. Choices B, C, and D are incorrect because potassium level, creatinine clearance, and prealbumin do not directly relate to assessing clotting abnormalities associated with petechiae and ecchymoses.

Correct Answer: C

Rationale: The correct answer is C: 'You should rinse your mouth after using this medication.' When providing discharge teaching for a client prescribed albuterol, the nurse should include the instruction to rinse the mouth after each use. This is important to prevent dry mouth and oral infections. Choice A is incorrect as albuterol is usually taken during the day to manage symptoms, not at bedtime. Choice B is incorrect as palpitations are not a common side effect of albuterol. Choice D is incorrect as there is no specific requirement to avoid eating before taking albuterol.

Correct Answer: A

Rationale: When a client is prescribed furosemide, monitoring potassium levels is crucial due to the drug's potential to cause hypokalemia. Furosemide is a loop diuretic that promotes potassium excretion in the urine, leading to a risk of low potassium levels. Monitoring potassium levels helps in detecting and preventing hypokalemia, which can result in adverse effects like cardiac dysrhythmias. Sodium, calcium, and hemoglobin levels are usually not directly affected by furosemide, making them less pertinent for monitoring in this specific scenario.

Correct Answer: A

Rationale: When a client in active labor has ruptured membranes, the priority action for the nurse is to apply a fetal heart rate monitor. This is crucial for continuous monitoring of the baby's heart rate and ensuring fetal well-being. Initiating fundal massage may be indicated for uterine atony after delivery, not for ruptured membranes during labor. Administering oxytocin IV could be appropriate in some cases to augment labor, but it is not the immediate priority after ruptured membranes. Inserting an indwelling urinary catheter is not necessary solely based on ruptured membranes; it may be indicated for specific situations like epidural anesthesia where the client cannot void.

Correct Answer: A

Rationale: An elevated BUN level indicates possible nephrotoxicity, which is a side effect of gentamicin and should be reported. Elevated serum creatinine and WBC count are not specifically related to gentamicin therapy. Normal serum glucose levels are also within the expected range.