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A 100-kg patient gets hemodialysis 3 days a week. In planning the care for this patient, the nurse recommends
- A. a diet of 2500 to 3500 kcal per day.
- B. protein intake of less than 50 grams per day.
- C. potassium intake of 10 mEq per day.
- D. fluid intake of less than 500 mL per day
Correct Answer: A
Rationale: The correct answer is A: a diet of 2500 to 3500 kcal per day. During hemodialysis, patients often experience increased energy expenditure due to the treatment process. Therefore, maintaining a higher caloric intake is crucial to prevent malnutrition and support the body's needs. Options B, C, and D are incorrect as limiting protein intake to less than 50 grams per day may lead to malnutrition in a patient undergoing hemodialysis, restricting potassium intake to 10 mEq per day may not be appropriate as individual needs vary, and restricting fluid intake to less than 500 mL per day can lead to dehydration and electrolyte imbalances in a patient undergoing hemodialysis.
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Which of the following are appropriate nursing interventions for the patient in myxedema coma? (Select all that apply.)
- A. Administer levothyroxine as prescribed.
- B. Encourage the intake of foods high in sodium.
- C. Initiate passive rewarming interventions.
- D. Monitor airway and respiratory effort.
Correct Answer: A
Rationale: Correct Answer: A
Rationale:
1. Administering levothyroxine is crucial in treating myxedema coma as it helps replace the deficient thyroid hormone.
2. This intervention addresses the underlying cause of myxedema coma, which is severe hypothyroidism.
3. Levothyroxine administration can help reverse the symptoms of myxedema coma and improve the patient's condition.
Summary of Incorrect Choices:
- B: Encouraging high sodium intake is not appropriate as myxedema coma is associated with fluid retention and sodium may exacerbate this.
- C: Passive rewarming interventions are not relevant for myxedema coma, as the condition is not typically related to hypothermia.
- D: While monitoring airway and respiratory effort is important in general patient care, it is not a specific intervention for myxedema coma.
The removal of plasma water and some low–molecular weight particles by using a pressure or osmotic gradient is known as
- A. dialysis.
- B. diffusion.
- C. clearance.
- D. ultrafiltration.
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.
The most significant clinical finding of acute adrenal crisis associated with fluid and electrolyte imbalance is
- A. fluid volume excess.
- B. hyperglycemia.
- C. hyperkalemia
- D. hypernatremia
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.
The most common reasons for initiating dialysis in acute kidney injury include which of the following? (Select all that apply.)
- A. Acidosis
- B. Hypokalemia
- C. Volume overload
- D. Hyperkalemia
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.
The critical care nurse is responsible for monitoring the patient receiving continuous renal replacement therapy (CRRT). In doing so, the nurse should
- A. assess that the blood tubing is warm to the touch.
- B. assess the hemofilter every 6 hours for clotting.
- C. cover the dialysis lines to protect them from light.
- D. use clean technique during vascular access dressing changes.
Correct Answer: B
Rationale: Correct Answer: B
Rationale:
1. Hemofilter clotting can affect CRRT efficiency.
2. Assessing every 6 hours allows early detection and intervention.
3. Clotting can lead to treatment interruptions or complications.
4. Regular assessment ensures optimal therapy delivery.
Other Choices:
A: Assessing tubing warmth is not a reliable indicator of CRRT function or complications.
C: Covering dialysis lines to protect from light is not a standard practice in CRRT monitoring.
D: Using clean technique is not sufficient for vascular access dressing changes; aseptic technique is required for infection prevention.