Nursing Elites

1. 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.

2. A 67-year-old male client has been complaining of sleeping more, increased urination, anorexia, weakness, irritability, depression, and bone pain that interferes with his ability to go outdoors. Based on these assessment findings, Nurse Richard would suspect which of the following disorders?

• A. Diabetes mellitus
• B. Diabetes insipidus
• C. Hypoparathyroidism
• D. Hyperparathyroidism

Correct answer: D

Rationale: The symptoms described in the scenario, such as bone pain, increased urination, anorexia, and weakness, are indicative of hyperparathyroidism. In hyperparathyroidism, there is an excess of parathyroid hormone leading to increased calcium levels, which can result in bone pain and various systemic effects. Choices A, B, and C are incorrect because they do not align with the symptoms presented by the client. Diabetes mellitus primarily presents with polyuria, polydipsia, and hyperglycemia. Diabetes insipidus manifests as polyuria and polydipsia with dilute urine. Hypoparathyroidism usually presents with hypocalcemia, causing symptoms like muscle cramps, tingling sensations, and seizures.

3. A nurse caring for a client with hypocalcemia would expect to note which of the following changes on the electrocardiogram?

• A. Widened T wave
• B. Prominent U wave
• C. Prolonged QT interval
• D. Shortened ST segment

Correct answer: C

Rationale: In hypocalcemia, a decreased level of calcium can lead to a prolonged QT interval on the ECG due to its role in myocardial repolarization. A widened T wave (Choice A) is typically seen in hyperkalemia. A prominent U wave (Choice B) is associated with hypokalemia. A shortened ST segment (Choice D) is not a typical ECG finding in hypocalcemia.

4. What is the mechanism of action of corticotropin (Acthar) when prescribed as replacement therapy for a male client who has undergone surgical removal of a pituitary tumor?

• A. It decreases cyclic adenosine monophosphate (cAMP) production and affects the metabolic rate of target organs.
• B. It interacts with plasma membrane receptors to inhibit enzymatic actions.
• C. It interacts with plasma membrane receptors to produce enzymatic actions that affect protein, fat, and carbohydrate metabolism.
• D. It regulates the threshold for water reabsorption in the kidneys.

Correct answer: C

Rationale: Corticotropin (ACTH) stimulates the adrenal cortex to secrete cortisol and other hormones, affecting protein, fat, and carbohydrate metabolism. Choice A is incorrect because corticotropin does not decrease cAMP production; instead, it stimulates enzymatic actions. Choice B is incorrect because corticotropin does not inhibit enzymatic actions but rather produces enzymatic actions. Choice D is incorrect because corticotropin's mechanism of action does not involve regulating the threshold for water reabsorption in the kidneys.

5. A client with diabetes insipidus is being treated with desmopressin. The nurse should monitor for which of the following side effects?

• A. Hyponatremia
• B. Hypernatremia
• C. Hypokalemia
• D. Hypercalcemia

Correct answer: A

Rationale: The correct answer is A: Hyponatremia. Desmopressin, a medication used in diabetes insipidus, can cause water retention by increasing water reabsorption in the kidneys. This excess water retention can lead to dilutional hyponatremia, where sodium levels in the body become too low. Monitoring for hyponatremia is crucial to prevent complications such as neurological symptoms. Choices B, C, and D are incorrect because desmopressin is not known to cause hypernatremia, hypokalemia, or hypercalcemia.

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