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A patient with newly diagnosed type 1 diabetes is being transitioned from an infusion of intravenous (IV) regular insulin to an intensive insulin therapy regimen of insulin glargine and insulin aspart. How should the nurse manage this transition in insulin delivery?
- A. Administer the insulin glargine and continue the IV insulin infusion for 24 hours.
- B. Administer the insulin glargine and discontinue the IV infusion in several hours.
- C. Discontinue the IV infusion and administer the insulin aspart with the next meal.
- D. Discontinue the IV infusion and administer the Lantus insulin at bedtime.
Correct Answer: D
Rationale: The correct answer is D: Discontinue the IV infusion and administer the Lantus insulin at bedtime. This is the correct approach because insulin glargine (Lantus) is a long-acting basal insulin that provides a steady level of insulin throughout the day and night. By administering it at bedtime, it mimics the basal insulin secretion in a person without diabetes. This helps maintain stable blood sugar levels overnight.
Choice A is incorrect because continuing the IV insulin infusion for 24 hours alongside insulin glargine is unnecessary and may lead to insulin overdose. Choice B is incorrect because discontinuing the IV infusion in several hours without administering the long-acting insulin can lead to inadequate insulin coverage. Choice C is incorrect because insulin aspart is a rapid-acting insulin that should be given with meals, not as a basal insulin replacement at bedtime.
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The patient is diagnosed with acute kidney injury and has been getting dialysis 3 days per week. The patient complains of general malaise and is tachypneic. An arterial blood gas shows that the patient’s pH is 19, with a PCO of 30 mm Hg and a bicarbonate level of 13 mEq/L. The nurse prepares to
- A. administer morphine to slow the respiratory rate.
- B. prepare for intubation and mechanical ventilation.
- C. administer intravenous sodium bicarbonate.
- D. cancel tomorrow’s dialysis session.
Correct Answer: B
Rationale: The correct answer is B: prepare for intubation and mechanical ventilation. The patient's arterial blood gas results indicate metabolic acidosis (low pH, low bicarbonate) with respiratory compensation (low PCO). In this scenario, the patient is likely experiencing respiratory fatigue due to tachypnea from metabolic acidosis. Intubation and mechanical ventilation are needed to support the patient's respiratory effort and correct the acid-base imbalance. Administering morphine (choice A) can further depress the respiratory drive. Administering intravenous sodium bicarbonate (choice C) can temporarily correct the pH but does not address the underlying respiratory distress. Canceling dialysis (choice D) is not indicated as it does not address the acute respiratory compromise.
An elderly female patient has presented to the emergency department with altered mental status, hypothermia, and clinical signs of heart failure. Myxedema is suspected. Which of the following laboratory findings support this diagnosis?
- A. Elevated adrenocorticotropic hormone
- B. Elevated cortisol levels
- C. Elevated T and T 3 4
- D. Elevated thyroid-stimulating hormone
Correct Answer: C
Rationale: Rationale for Correct Answer (C): Elevated T and T3/T4 levels are indicative of primary hypothyroidism, such as myxedema. In this case, the patient presents with classic symptoms of hypothyroidism, including altered mental status, hypothermia, and heart failure. Elevated T3/T4 levels confirm the diagnosis.
Summary of Incorrect Choices:
A: Elevated adrenocorticotropic hormone is associated with adrenal disorders, not hypothyroidism.
B: Elevated cortisol levels suggest Cushing's syndrome, a condition of excess cortisol production, not hypothyroidism.
D: Elevated thyroid-stimulating hormone is seen in primary hypothyroidism, but in myxedema, the issue is not with TSH but with T3/T4 levels.
The nurse is caring for a patient who has sustained blunt trauma to the left flank area, and is evaluating the patient’s urinalysis results. The nurse should become concerned when
- A. creatinine levels in the urine are similar to blood levels of creatinine.
- B. sodium and chloride are found in the urine.
- C. urine uric acid levels have the same values as serum levels.
- D. red blood cells and albumin are found in the urine.
Correct Answer: D
Rationale: The correct answer is D because the presence of red blood cells and albumin in the urine indicates kidney damage, as these are not normally found in urine. A: Creatinine levels should be similar in blood and urine for proper kidney function. B: Sodium and chloride are normal components of urine. C: Uric acid levels can vary in urine and serum. Therefore, D is the correct answer as it signals potential kidney injury.
A patient with pancreatic cancer has been admitted to the critical care unit with clinical signs consistent with syndrome of inappropriate secretion of antidiuretic hormone. The nurse anticipates that clinical management of this condition will include
- A. administration of 3% normal saline.
- B. administration of exogenous vasopressin.
- C. fluid restriction.
- D. low sodium diet.
Correct Answer: C
Rationale: Step 1: Syndrome of inappropriate antidiuretic hormone (SIADH) leads to excess water retention, diluting sodium levels in the blood.
Step 2: Fluid restriction is the mainstay of treatment to prevent further dilution of sodium.
Step 3: Administering 3% normal saline (choice A) can worsen the condition by further increasing sodium levels.
Step 4: Exogenous vasopressin (choice B) would exacerbate the problem by increasing water retention.
Step 5: Low sodium diet (choice D) may be beneficial in the long term but is not the immediate priority.
A college student was admitted to the emergency department after being found unconscious by a roommate. The roommate informs emergency medical personnel that the student has diabetes and has been experiencing flulike symptoms, including vomiting, since yesterday. The patient had been up all night studying for exams. The patient used the last diabetes testing supplies 3 days ago and has not had time to go to the pharmacy to refill prescription supplies. Based upon the history, which laboratory findings would be anticipated in this client? (Select all that apply.)
- A. Blood glucose: 43 mg/dL
- B. Blood glucose: 524 mg/dL
- C. HCO —: 10 mEq/L
- D. PaCO : 37 mm Hg
Correct Answer: B
Rationale: The correct answer is B: Blood glucose: 524 mg/dL. The patient likely has diabetic ketoacidosis (DKA) due to missed insulin doses, stress, and illness leading to high blood glucose levels. DKA is characterized by hyperglycemia, ketosis, and metabolic acidosis. A low blood glucose level (Choice A) is not consistent with DKA. HCO3- of 10 mEq/L (Choice C) indicates metabolic acidosis, but it's not specific to DKA. A PaCO2 of 37 mm Hg (Choice D) is within the normal range and not directly related to DKA.