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. A client with type 1 diabetes mellitus is admitted with diabetic ketoacidosis (DKA). Which of the following interventions should be the nurse's priority?

• A. Administer intravenous insulin
• B. Start an intravenous line and infuse normal saline
• C. Monitor serum potassium levels
• D. Obtain an arterial blood gas (ABG)

Correct answer: B

Rationale: The correct answer is to start an intravenous line and infuse normal saline. In diabetic ketoacidosis (DKA), the priority intervention is fluid resuscitation with normal saline to restore intravascular volume and improve perfusion. Administering insulin without first addressing dehydration and electrolyte imbalances can lead to further complications. Monitoring serum potassium levels and obtaining an arterial blood gas (ABG) are important aspects of DKA management but come after initial fluid resuscitation.

3. Dr. Kennedy prescribes glipizide (Glucotrol), an oral antidiabetic agent, for a male client with type 2 diabetes mellitus who has been having trouble controlling the blood glucose level through diet and exercise. Which medication instruction should the nurse provide?

• A. Be sure to take glipizide 30 minutes before meals.
• B. Glipizide may cause a low serum sodium level, so make sure you have your sodium level checked monthly.
• C. You won't need to check your blood glucose level after you start taking glipizide.
• D. Take glipizide after a meal to prevent heartburn.

Correct answer: A

Rationale: Glipizide should be taken 30 minutes before meals to maximize its glucose-lowering effect.

4. The nurse is caring for a client with diabetes insipidus. Which of the following laboratory findings should the nurse monitor?

• A. Serum sodium
• B. Serum potassium
• C. Serum calcium
• D. Serum magnesium

Correct answer: A

Rationale: In diabetes insipidus, there is excessive excretion of water leading to dehydration. Monitoring serum sodium levels is crucial because these clients often experience hypernatremia (elevated serum sodium levels) due to the loss of relatively more water than sodium, resulting in a sodium concentration imbalance. While monitoring serum potassium, calcium, and magnesium levels is also important in various conditions, they are not the primary focus in diabetes insipidus.

5. A client with type 1 diabetes mellitus is admitted to the hospital with diabetic ketoacidosis (DKA). Which of the following interventions should the nurse implement first?

• A. Administer intravenous insulin
• B. Start an intravenous line and infuse normal saline
• C. Monitor serum potassium levels
• D. Obtain an arterial blood gas (ABG)

Correct answer: B

Rationale: The correct first intervention in the treatment of a client with diabetic ketoacidosis (DKA) is to start an intravenous line and infuse normal saline. This is essential for fluid resuscitation to restore intravascular volume and improve perfusion. Administering intravenous insulin can lead to further potassium depletion without first addressing dehydration and electrolyte imbalances. Monitoring serum potassium levels is important but should follow fluid resuscitation to avoid life-threatening hypokalemia. Obtaining an arterial blood gas (ABG) is necessary to assess the acid-base status but is not the initial priority when managing DKA.

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