Nursing Elites

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. A client with a diagnosis of diabetic ketoacidosis (DKA) is being treated in the ER. Which finding would a nurse expect to note as confirming this diagnosis?

• A. Elevated blood glucose level and a low plasma bicarbonate
• B. Decreased urine output
• C. Increased respirations and an increase in pH
• D. Comatose state

Correct answer: A

Rationale: The correct answer is A: Elevated blood glucose level and a low plasma bicarbonate. Diabetic ketoacidosis (DKA) is characterized by hyperglycemia, ketosis, and metabolic acidosis, reflected by a low plasma bicarbonate. Elevated blood glucose levels are a hallmark of DKA due to the body's inability to use glucose properly. Choices B, C, and D are incorrect. Decreased urine output is not a specific finding associated with DKA. Increased respirations and an increase in pH are not typical in DKA; in fact, respiratory compensation for the metabolic acidosis in DKA leads to Kussmaul breathing (deep, rapid breathing). A comatose state may occur in severe cases of DKA but is not a confirming finding for the diagnosis.

3. A healthcare provider is educating a client with DM on recognizing symptoms of hypoglycemia. Which symptom should the healthcare provider mention?

• A. Increased thirst
• B. Frequent urination
• C. Sweating
• D. Weight loss

Correct answer: C

Rationale: The correct symptom to mention when educating a client with diabetes mellitus (DM) on hypoglycemia is sweating. Sweating is a common symptom of hypoglycemia as it occurs due to the activation of the sympathetic nervous system in response to low blood sugar levels. Increased thirst (Choice A) and frequent urination (Choice B) are more indicative of hyperglycemia (high blood sugar) rather than hypoglycemia. Weight loss (Choice D) is not a typical symptom associated with hypoglycemia.

4. The healthcare provider is assessing a client with suspected diabetes insipidus. Which of the following clinical manifestations would support this diagnosis?

• A. Polyuria and polydipsia
• B. Hypertension and bradycardia
• C. Weight gain and edema
• D. Oliguria and thirst

Correct answer: A

Rationale: Polyuria (excessive urination) and polydipsia (excessive thirst) are classic clinical manifestations of diabetes insipidus. In this condition, there is a deficiency of antidiuretic hormone, leading to the inability of the kidneys to concentrate urine effectively, resulting in increased urine output (polyuria) and consequent thirst (polydipsia). Hypertension and bradycardia (Choice B) are not typical findings in diabetes insipidus. Weight gain and edema (Choice C) are more indicative of conditions such as heart failure or nephrotic syndrome. Oliguria (decreased urine output) and thirst (Choice D) are contradictory symptoms to what is seen in diabetes insipidus.

5. A client with hyperthyroidism is prescribed methimazole. The nurse should instruct the client that the purpose of this medication is to:

• A. Decrease thyroid hormone production
• B. Increase thyroid hormone production
• C. Suppress the immune system
• D. Prevent thyroid storm

Correct answer: A

Rationale: The correct answer is A: Decrease thyroid hormone production. Methimazole works by inhibiting the synthesis of thyroid hormones, specifically by blocking the enzyme responsible for this process. By reducing the production of thyroid hormones, methimazole helps to normalize the elevated levels seen in hyperthyroidism. Choices B, C, and D are incorrect. Choice B, 'Increase thyroid hormone production,' is inaccurate as methimazole actually decreases thyroid hormone production. Choice C, 'Suppress the immune system,' is unrelated to the mechanism of action of methimazole. Choice D, 'Prevent thyroid storm,' is not the primary purpose of methimazole; while it may help prevent worsening of hyperthyroidism, its main action is to reduce thyroid hormone levels.

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