The nurse is assigned to care for a patient who presented to the emergency department with diabetic ketoacidosis. A continuous insulin intravenous infusion is started, and hourly bedside glucose monitoring is ordered. The targeted blood glucose value after the first hour of therapy is

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Question 1 of 9

The nurse is assigned to care for a patient who presented to the emergency department with diabetic ketoacidosis. A continuous insulin intravenous infusion is started, and hourly bedside glucose monitoring is ordered. The targeted blood glucose value after the first hour of therapy is

Correct Answer: C

Rationale: The correct answer is C: a decrease of 35 to 90 mg/dL compared with admitting values. In diabetic ketoacidosis, there is severe hyperglycemia which needs to be corrected gradually to prevent complications like cerebral edema. A rapid decrease in glucose levels can lead to osmotic shifts and neurological issues. The targeted decrease of 35 to 90 mg/dL is considered safe and effective in managing hyperglycemia in these patients. This range ensures a controlled reduction in blood glucose levels without causing harm. Choice A (70 to 120 mg/dL) is too broad and may lead to overly aggressive treatment. Choice B (a decrease of 25 to 50 mg/dL) is too conservative and may not adequately address the high glucose levels seen in diabetic ketoacidosis. Choice D (less than 200 mg/dL) does not provide a specific target range for glucose reduction, which is essential in managing diabetic ketoacidosis effectively.

Question 2 of 9

The most common reasons for initiating dialysis in acute kidney injury include which of the following? (Select all that apply.)

Correct Answer: A

Rationale: Explanation: A: Acidosis is a common reason to initiate dialysis in acute kidney injury due to impaired acid-base balance. B: Hypokalemia is not a common reason for initiating dialysis in acute kidney injury. C: Volume overload may require dialysis but is not as common as acidosis. D: Hyperkalemia is a valid reason for dialysis but not as common as acidosis in acute kidney injury.

Question 3 of 9

The most significant clinical finding of acute adrenal crisis associated with fluid and electrolyte imbalance is

Correct Answer: C

Rationale: Step-by-step rationale for the correct answer (C: hyperkalemia): 1. Adrenal crisis leads to adrenal insufficiency, causing decreased cortisol levels. 2. Cortisol plays a crucial role in regulating potassium levels. 3. With decreased cortisol, potassium levels can rise, leading to hyperkalemia. 4. Hyperkalemia can result in life-threatening cardiac arrhythmias. Summary: A: Fluid volume excess is not typical in adrenal crisis. B: Hyperglycemia can be present but is not the most significant finding. D: Hypernatremia is not a typical feature of adrenal crisis.

Question 4 of 9

The nurse is assigned to care for a patient who presented to the emergency department with diabetic ketoacidosis. A continuous insulin intravenous infusion is started, and hourly bedside glucose monitoring is ordered. The targeted blood glucose value after the first hour of therapy is

Correct Answer: C

Rationale: The correct answer is C: a decrease of 35 to 90 mg/dL compared with admitting values. In diabetic ketoacidosis, there is severe hyperglycemia which needs to be corrected gradually to prevent complications like cerebral edema. A rapid decrease in glucose levels can lead to osmotic shifts and neurological issues. The targeted decrease of 35 to 90 mg/dL is considered safe and effective in managing hyperglycemia in these patients. This range ensures a controlled reduction in blood glucose levels without causing harm. Choice A (70 to 120 mg/dL) is too broad and may lead to overly aggressive treatment. Choice B (a decrease of 25 to 50 mg/dL) is too conservative and may not adequately address the high glucose levels seen in diabetic ketoacidosis. Choice D (less than 200 mg/dL) does not provide a specific target range for glucose reduction, which is essential in managing diabetic ketoacidosis effectively.

Question 5 of 9

A patient is receiving hydrocortisone sodium succinate for adrenal crisis. What other medication does the nurse prepare to administer?

Correct Answer: B

Rationale: The correct answer is B: A proton pump inhibitor. When a patient is receiving hydrocortisone for adrenal crisis, it can lead to increased gastric acid secretion. A proton pump inhibitor helps reduce acid production and prevents gastric ulcers. Regular insulin (A) is not typically indicated in this scenario. Canagliflozin (C) is a medication used for diabetes management and is not relevant here. Propranolol (D) is a beta-blocker and may mask signs of hypoglycemia when used with insulin, which is not suitable in this case.

Question 6 of 9

The removal of plasma water and some low–molecular weight particles by using a pressure or osmotic gradient is known as

Correct Answer: D

Rationale: The correct answer is D: ultrafiltration. Ultrafiltration involves the removal of plasma water and low-molecular weight particles using a pressure or osmotic gradient. This process allows small molecules to pass through a semipermeable membrane while retaining larger molecules. Dialysis (A) involves the removal of waste products and excess fluids from the blood, while diffusion (B) is the movement of molecules from an area of high concentration to low concentration. Clearance (C) refers to the rate at which a substance is removed from the blood by a specific organ or process. Ultrafiltration specifically targets the removal of plasma water and low-molecular weight particles through a pressure or osmotic gradient, making it the correct choice in this context.

Question 7 of 9

Which of the following patients is at the highest risk for hyperosmolar hyperglycemic syndrome?

Correct Answer: D

Rationale: The correct answer is D because the 83-year-old long-term care resident with type 2 diabetes and advanced Alzheimer's disease who recently developed influenza is at the highest risk for hyperosmolar hyperglycemic syndrome (HHS). This patient has multiple risk factors for HHS, including age, type 2 diabetes, advanced Alzheimer's disease, and the added stress of influenza, which can exacerbate hyperglycemia. The combination of these factors can lead to severe hyperglycemia, dehydration, and electrolyte imbalances characteristic of HHS. Choice A is incorrect because although excessive exercise can lead to hypoglycemia in individuals with type 1 diabetes, it is not a risk factor for HHS. Choice B is incorrect as forgetting to take insulin can lead to diabetic ketoacidosis in type 1 diabetes, not HHS. Choice C is incorrect as starting insulin injections in a patient with type 2 diabetes and coronary artery disease does not automatically increase the risk

Question 8 of 9

The patient undergoes a cardiac catheterization that requires the use of contrast dyes during the procedure. To detect signs of contrast-induced kidney injury, the nurse should

Correct Answer: B

Rationale: Correct Answer: B Rationale: 1. Contrast dyes can cause kidney injury due to their nephrotoxic effects. 2. Serum creatinine levels are a reliable indicator of kidney function. 3. Evaluating serum creatinine for up to 72 hours after the procedure allows detection of any contrast-induced kidney injury. 4. Monitoring serum creatinine helps in early identification and intervention for renal complications. Summary: A: Incorrect. Urine output alone is not a definitive indicator of kidney injury. C: Incorrect. Renal ultrasound is not typically used for detecting contrast-induced kidney injury. D: Incorrect. Postvoid residual volume is not specific for contrast-induced kidney injury.

Question 9 of 9

The nurse is caring for a patient who has a temporary percutaneous dialysis catheter in place. In caring for this patient, the nurse should

Correct Answer: C

Rationale: The correct answer is C because assessing the catheter site for redness and/or swelling is essential in monitoring for signs of infection or complications. Redness and swelling can indicate infection, which requires prompt intervention. A: Applying a sterile gauze dressing is not necessary for a temporary percutaneous dialysis catheter unless specified by the healthcare provider. B: Transparent dressings are typically left in place for several days unless there is a specific reason to change them more frequently. D: Using the catheter for drawing blood samples is not recommended as it can increase the risk of infection and may interfere with the dialysis process.

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