Acute adrenal crisis is caused by

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Question 1 of 9

Acute adrenal crisis is caused by

Correct Answer: B

Rationale: The correct answer is B: deficiency of corticosteroids. Acute adrenal crisis is caused by a sudden and severe deficiency of cortisol and aldosterone, which are essential corticosteroids produced by the adrenal glands. Without these hormones, the body cannot regulate blood pressure, electrolyte balance, and respond to stress adequately. Acute renal failure (choice A) does not directly lead to adrenal crisis. High doses of corticosteroids (choice C) can suppress the adrenal glands but do not cause acute adrenal crisis. Overdose of testosterone (choice D) does not impact the production of cortisol and aldosterone, thus not causing acute adrenal crisis.

Question 2 of 9

The most common cause of acute kidney injury in critically ill patients is

Correct Answer: A

Rationale: The correct answer is A: sepsis. Sepsis is a leading cause of acute kidney injury in critically ill patients due to the systemic inflammatory response leading to kidney damage. Fluid overload (B) can contribute but is not the primary cause. Medications (C) and hemodynamic instability (D) can also lead to acute kidney injury but are not as common as sepsis in critically ill patients.

Question 3 of 9

Which of the following is a high-priority nursing diagnosis for both diabetic ketoacidosis and hyperosmolar hyperglycemic syndrome?

Correct Answer: B

Rationale: The correct answer is B: Fluid volume deficient. Both diabetic ketoacidosis and hyperosmolar hyperglycemic syndrome can lead to severe dehydration and electrolyte imbalances. Addressing fluid volume deficiency is crucial to stabilize the patient's condition. Choice A is not the priority as the main concern is the fluid imbalance, not activity intolerance. Hyperthermia (choice C) may be present but is not the primary concern compared to fluid volume deficit. Impaired nutrition (choice D) is not the immediate priority in these emergency situations. In summary, maintaining fluid balance is essential to manage both conditions effectively.

Question 4 of 9

The patient is in the critical care unit and will receive dialysis this morning. The nurse will (Select all that apply.)

Correct Answer: A

Rationale: The correct answer is A. By evaluating the morning laboratory results and reporting abnormal results, the nurse can ensure the patient's safety during dialysis by addressing any concerning findings promptly. This step is crucial in monitoring the patient's condition and adjusting the treatment plan as needed. Incorrect choices: B: Administering antihypertensive medications is not directly related to the patient's dialysis procedure and does not address the immediate needs of the patient in the critical care unit. C: While assessing the dialysis access site is important, reporting abnormalities alone may not be sufficient without a comprehensive evaluation of the patient's laboratory results. D: Weighing the patient to monitor fluid status is important in the context of dialysis, but it is not as critical as evaluating laboratory results for immediate intervention.

Question 5 of 9

The patient has been admitted to the hospital with nausea and vomiting that started 5 days earlier. Blood pressure is 80/44 mm Hg and heart rate is 122 beats/min; the patient has not voided in 8 hours, and the bladder is not distended. The nurse anticipates a prescription for “stat” administration of

Correct Answer: B

Rationale: The correct answer is B: fluid replacement with 0.45% saline. The patient's symptoms suggest dehydration and hypovolemia, indicated by low blood pressure, elevated heart rate, and lack of urine output. Fluid replacement with isotonic saline would help restore intravascular volume and improve blood pressure. Blood transfusion (A) is not indicated without evidence of significant blood loss. Inotropic agents (C) are used to improve cardiac function, which is not the primary issue in this case. Antiemetics (D) may help with nausea and vomiting but do not address the underlying cause of hypovolemia.

Question 6 of 9

A patient is admitted to the critical care unit with a diagnosis of diabetic ketoacidosis. Following aggressive fluid resuscitation and intravenous (IV) insulin administration, the blood glucose begins to normalize. In addition to glucose monitoring, which of the following electrolytes requires close monitoring?

Correct Answer: C

Rationale: The correct answer is C: Potassium. During treatment of diabetic ketoacidosis, as blood glucose levels decrease, potassium levels can quickly drop due to insulin therapy driving potassium into cells. Monitoring potassium levels closely is crucial to prevent hypokalemia, which can lead to life-threatening cardiac arrhythmias. Choice A: Calcium - Calcium levels are not typically affected by diabetic ketoacidosis treatment and do not require immediate monitoring in this context. Choice B: Chloride - Chloride levels are usually not significantly impacted by diabetic ketoacidosis treatment and do not need close monitoring in this case. Choice D: Sodium - While sodium levels can be affected by dehydration in diabetic ketoacidosis, they are not as critical to monitor as potassium levels during treatment.

Question 7 of 9

The nurse is caring for a patient with a diagnosis of head trauma. The nurse notes that the patient’s urine output has increased tremendously over the past 18 hours. The nurse suspects that the patient may be developing

Correct Answer: A

Rationale: Rationale: A patient with head trauma may develop diabetes insipidus due to damage to the hypothalamus or pituitary gland, leading to decreased secretion of antidiuretic hormone (ADH). This results in excessive urine output and thirst. Other options are incorrect because: B: Diabetic ketoacidosis is associated with high blood sugar and ketones, not increased urine output. C: Hyperosmolar hyperglycemic syndrome is characterized by extreme hyperglycemia, not increased urine output. D: Syndrome of inappropriate secretion of antidiuretic hormone results in decreased urine output due to excess ADH.

Question 8 of 9

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.)

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.

Question 9 of 9

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

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.

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