Nursing Elites

1. A client with type 1 diabetes mellitus presents with nausea, vomiting, and abdominal pain. The nurse suspects diabetic ketoacidosis (DKA). Which of the following lab findings would confirm this diagnosis?

• A. Serum glucose of 180 mg/dL
• B. Serum bicarbonate of 22 mEq/L
• C. Blood pH of 7.25
• D. Urine specific gravity of 1.020

Correct answer: C

Rationale: A blood pH of 7.25 is a critical finding in diabetic ketoacidosis (DKA) as it indicates metabolic acidosis, which is a hallmark of this condition. In DKA, there is an accumulation of ketones in the blood, leading to increased acidity. The serum glucose level is typically elevated in DKA, often exceeding 250 mg/dL. A serum bicarbonate level less than 18 mEq/L is usually seen in DKA due to the metabolic acidosis. Urine specific gravity is not a specific indicator for DKA and may vary depending on the individual's hydration status. Therefore, the correct lab finding that confirms DKA in this scenario is a blood pH of 7.25.

2. The client with newly diagnosed diabetes mellitus is being taught about managing blood glucose levels. Which statement indicates a need for further teaching?

• A. I will rotate my insulin injection sites to avoid tissue damage.
• B. I will monitor my blood glucose levels before each meal.
• C. I can eat unlimited fruit as it is healthy.
• D. I should carry a fast-acting carbohydrate with me at all times.

Correct answer: C

Rationale: Choice C indicates a need for further teaching because stating 'I can eat unlimited fruit as it is healthy' is incorrect. While fruits are healthy, they also contain natural sugars that can affect blood glucose levels. Portion control is crucial to managing blood glucose levels effectively. Choices A, B, and D demonstrate correct understanding. Rotating insulin injection sites helps prevent tissue damage, monitoring blood glucose levels before meals aids in managing diabetes effectively, and carrying a fast-acting carbohydrate is essential to treat hypoglycemia promptly.

3. A male client with a tentative diagnosis of hyperosmolar hyperglycemic nonketotic syndrome (HHNS) has a history of type 2 diabetes that is being controlled with an oral diabetic agent, tolazamide (Tolinase). Which of the following is the most important laboratory test for confirming this disorder?

• A. Serum potassium level
• B. Serum sodium level
• C. Arterial blood gas (ABG) values
• D. Serum osmolarity

Correct answer: D

Rationale: Serum osmolarity is the most important laboratory test for confirming hyperosmolar hyperglycemic nonketotic syndrome (HHNS). HHNS is characterized by severe hyperglycemia and dehydration without ketoacidosis. Elevated serum osmolarity indicates increased solute concentration in the blood, which is a hallmark of HHNS. Serum potassium level (Choice A) is important in conditions like diabetic ketoacidosis rather than HHNS. Serum sodium level (Choice B) may be affected in HHNS but is not the primary test for confirming the disorder. Arterial blood gas (ABG) values (Choice C) are more useful in assessing acid-base status, which is not the primary concern in HHNS.

4. The nurse is caring for a client with syndrome of inappropriate antidiuretic hormone (SIADH). Which of the following interventions should the nurse implement?

• A. Encourage increased fluid intake
• B. Administer vasopressin
• C. Monitor for signs of dehydration
• D. Restrict oral fluids

Correct answer: D

Rationale: The correct intervention for a client with syndrome of inappropriate antidiuretic hormone (SIADH) is to restrict oral fluids. SIADH leads to excessive release of antidiuretic hormone (ADH), causing the body to retain water and diluting the sodium levels in the blood (hyponatremia). Restricting oral fluids helps prevent further water retention and worsening hyponatremia. Encouraging increased fluid intake (choice A) would exacerbate the problem by further diluting sodium levels. Administering vasopressin (choice B) is not indicated in SIADH, as the condition is characterized by excess ADH secretion. Monitoring for signs of dehydration (choice C) is not the priority in SIADH since the issue is water retention rather than dehydration.

5. A client with Addison's disease is experiencing an Addisonian crisis. The nurse should expect to administer which of the following medication?

• A. Insulin
• B. Hydrocortisone
• C. Levothyroxine
• D. Methimazole

Correct answer: B

Rationale: During an Addisonian crisis, the adrenal glands are not producing enough cortisol, leading to a life-threatening situation. Hydrocortisone, a glucocorticoid, is the medication of choice in managing an Addisonian crisis. It helps replace deficient cortisol levels, stabilize blood pressure, and prevent further complications. Insulin (Choice A) is not indicated in Addison's disease unless specifically needed for diabetes management. Levothyroxine (Choice C) is used in hypothyroidism, not in Addison's disease. Methimazole (Choice D) is used to manage hyperthyroidism, which is not related to Addison's disease or its crisis.

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