capillary glucose monitoring is being performed every 4 hours for a female client diagnosed with diabetic ketoacidosis insulin is administered using a

HESI RN

Leadership HESI

1. Capillary glucose monitoring is being performed every 4 hours for a female client diagnosed with diabetic ketoacidosis. Insulin is administered using a scale of regular insulin according to glucose results. At 2 p.m., the client has a capillary glucose level of 250 mg/dl for which she receives 8 U of regular insulin. Nurse Vince should expect the dose's:

A. Onset to be at 2 p.m. and its peak to be at 3 p.m.
B. Onset to be at 2:15 p.m. and its peak to be at 3 p.m.
C. Onset to be at 2:30 p.m. and its peak to be at 4 p.m.
D. Onset to be at 4 p.m. and its peak to be at 6 p.m.

Correct answer: C

Rationale: The correct answer is C. Regular insulin typically has an onset of action within 30 minutes and peaks 2-4 hours after administration. Given that the insulin was administered at 2 p.m., the onset of action can be expected around 2:30 p.m., and the peak effect would occur between 4-6 p.m. Choice A is incorrect as the onset and peak are too close together for regular insulin. Choice B is incorrect because the onset time is too soon after administration. Choice D is incorrect as the onset time is too delayed for regular insulin.

2. The healthcare provider is caring for a client with pheochromocytoma. Which of the following interventions should the healthcare provider implement?

A. Administer beta-blockers to control blood pressure
B. Encourage a high-sodium diet
C. Monitor for signs of hyperglycemia
D. Restrict fluid intake to prevent edema

Correct answer: A

Rationale: The correct intervention for a client with pheochromocytoma is to administer beta-blockers to control blood pressure. Pheochromocytoma is a catecholamine-secreting tumor that can cause severe hypertension. Beta-blockers are used to block the effects of catecholamines and help control blood pressure in these clients. Encouraging a high-sodium diet (Choice B) would not be appropriate as it can worsen hypertension. Monitoring for signs of hyperglycemia (Choice C) is not directly related to managing pheochromocytoma. Restricting fluid intake (Choice D) may lead to dehydration and is not a recommended intervention for this condition.

3. A client with DM is scheduled for surgery. The nurse should plan to:

A. Monitor the client's blood glucose level closely during the perioperative period.
B. Give the client a regular diet as ordered.
C. Have the client stop taking insulin 48 hours before surgery.
D. Hold the client's insulin on the morning of surgery.

Correct answer: A

Rationale: The correct answer is to monitor the client's blood glucose level closely during the perioperative period. For a client with diabetes mellitus (DM) scheduled for surgery, it is essential to closely monitor blood glucose levels to prevent hypo- or hyperglycemia. Choice B is incorrect because giving the client a regular diet as ordered may not address the specific needs related to managing blood glucose levels in the perioperative period. Choice C is incorrect as abruptly stopping insulin 48 hours before surgery can lead to uncontrolled blood sugar levels, which is not recommended. Choice D is incorrect because holding the client's insulin on the morning of surgery can also disrupt blood sugar control, potentially leading to complications during the perioperative period.

4. Albert refuses his bedtime snack. This should alert the healthcare provider to assess for:

A. Elevated serum bicarbonate and decreased blood pH.
B. Signs of hypoglycemia earlier than expected.
C. Symptoms of hyperglycemia due to NPH insulin peak time.
D. Presence of sugar in the urine.

Correct answer: B

Rationale: When a patient like Albert refuses his bedtime snack, it can lead to hypoglycemia, especially if they are on medication such as insulin. Hypoglycemia can occur earlier than expected due to the lack of carbohydrate intake before bedtime. This situation warrants the healthcare provider to monitor for signs and symptoms of hypoglycemia. Choice A is incorrect because the given scenario is more indicative of hypoglycemia than metabolic alkalosis. Choice C is incorrect as NPH insulin peak time is not directly related to skipping a bedtime snack. Choice D is incorrect as sugar in the urine typically indicates hyperglycemia, not hypoglycemia.

5. For the first 72 hours after thyroidectomy surgery, nurse Jamie would assess the female client for Chvostek's sign and Trousseau's sign because they indicate which of the following?

A. Hypocalcemia
B. Hypercalcemia
C. Hypokalemia
D. Hyperkalemia

Correct answer: A

Rationale: Chvostek's and Trousseau's signs are clinical manifestations that suggest hypocalcemia, a common complication following thyroidectomy. Chvostek's sign is elicited by tapping the facial nerve, resulting in facial muscle contraction, while Trousseau's sign is provoked by inflating a blood pressure cuff, leading to carpal spasm. Both signs are indicative of low calcium levels in the blood. Therefore, options B, C, and D are incorrect as they do not correlate with the signs specifically associated with hypocalcemia.