Correct Answer: A

Rationale: The correct action for the nurse to take first is to discontinue the IO infusion. The client's symptoms of severe pain, numbness, pale skin, and edema below the IO site suggest a complication, such as extravasation or compartment syndrome. By discontinuing the infusion, further harm can be prevented. Administering an analgesic via the IO site or elevating the extremity would not address the underlying issue and could potentially worsen the condition. Notifying the healthcare provider can be done after stopping the infusion to seek further guidance or intervention.

Correct Answer: A

Rationale: The correct answer is A: Heart rate and blood pressure. When a client with a history of myocardial infarction (MI) is on a beta-blocker medication, monitoring heart rate and blood pressure is crucial. Beta-blockers lower heart rate and blood pressure, so monitoring these parameters helps assess the medication's effectiveness and prevent complications like bradycardia or hypotension. Choices B, C, and D are not the most important outcomes to monitor in this scenario. Blood glucose levels are typically monitored in clients with diabetes or when using medications that affect glucose levels. Respiratory rate is important in assessing respiratory function and oxygenation, while liver function tests are more relevant when monitoring the impact of medications on liver health.

Correct Answer: D

Rationale: The correct answer is D. Metformin does not require additional doses for hyperglycemia, and sliding scale insulin is not typically used with metformin. It is important for the client to recognize signs and symptoms of hypoglycemia, report persistent polyuria to the healthcare provider, and take the medication with meals. Teaching the client to use sliding scale insulin for finger stick glucose elevation is not appropriate in this case because metformin is the prescribed medication, and its mechanism of action differs from insulin therapy. The client should be educated on the importance of taking metformin with meals to reduce gastrointestinal side effects and to report any persistent polyuria, which could indicate poor blood sugar control.

Correct Answer: A

Rationale: The correct instruction for the adult male client to follow when collecting a 24-hour urine specimen for a creatinine clearance test is to urinate at the specified time, discard this urine, and collect all subsequent urine over the next 24 hours. This method ensures proper collection for an accurate creatinine clearance measurement. Choice B is incorrect as it describes a different procedure for a clean-catch urine sample, not suitable for creatinine clearance. Choice C is incorrect as it suggests catheterization, which is not typically done for a creatinine clearance test, and it is not necessary for this procedure. Choice D is incorrect as it does not follow the standard procedure for a 24-hour urine collection for creatinine clearance; the urine should be collected continuously over 24 hours, not at specified intervals.

Correct Answer: C

Rationale: Following a thyroidectomy, tetany can occur due to hypoparathyroidism, leading to low calcium levels. Therefore, the nurse should administer calcium gluconate intravenously to raise the calcium levels. Choice A, Sodium iodide solution, is incorrect as it is used for thyroid conditions, not for treating tetany. Choice B, Levothyroxine sodium (Synthroid), is incorrect as it is a thyroid hormone replacement and does not address low calcium levels. Choice D, Propranolol (Inderal), is incorrect as it is a beta-blocker used for conditions like hypertension and not indicated for tetany after thyroidectomy.