Nokea
Which of the following would be seen in a patient with myxedema coma?
- A. Decreased reflexes
- B. Hyperthermia
- C. Hyperventilation
- D. Tachycardia
Correct Answer: A
Rationale: The correct answer is A: Decreased reflexes. In myxedema coma, a severe form of hypothyroidism, patients often present with decreased mental status, hypothermia, and bradycardia. Decreased reflexes are a common neurological manifestation due to the slowing of metabolic processes and the central nervous system depression associated with this condition. Hyperthermia (B) is not typically seen in myxedema coma, as patients usually have low body temperature. Hyperventilation (C) is also unlikely, as respiratory depression is more common. Tachycardia (D) is incorrect because bradycardia is more characteristic of myxedema coma.
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The nurse is caring for a patient who suffered a head trauma following a fall. The patient’s heart rate is 112 beats/min and blood pressure is 88/50 mm Hg. The patient has poor skin turgor and dry mucous membranes. The patient is confused and restless. The following laboratory values are reported: serum sodium is 115 mEq/L; blood urea nitrogen (BUN) 50 mg/dL; and creatinine 8 mg/dL. The findings are consistent with which disorder?
- A. Cerebral salt wasting
- B. Diabetes insipidus
- C. Syndrome of inappropriate secretion of antidiuretic hormone
- D. Thyroid storm
Correct Answer: A
Rationale: The correct answer is A: Cerebral salt wasting. This is indicated by the low serum sodium level (115 mEq/L), which can occur in patients with head trauma and lead to excessive sodium loss through the kidneys. This results in hypovolemia, leading to low blood pressure and tachycardia. The elevated BUN (50 mg/dL) and creatinine (8 mg/dL) levels suggest dehydration and renal impairment due to volume depletion. The patient's poor skin turgor, dry mucous membranes, confusion, and restlessness further support the diagnosis of cerebral salt wasting.
Summary:
B: Diabetes insipidus is characterized by excessive urination and thirst due to insufficient production of antidiuretic hormone (ADH). This patient's symptoms are not consistent with diabetes insipidus.
C: Syndrome of inappropriate secretion of antidiuretic hormone (SIADH) is characterized by excessive release of ADH, leading to water retention and
Daily weights are being recorded for the patient with a urine output that has been less than the intravenous and oral intake. The weight yesterday was 5 kg. This morning it is 99 kg. The nurse understands that this corresponds to a(n)
- A. fluid retention of 1.5 liters.
- B. fluid loss of 1.5 liters.
- C. equal intake and output due to insensible losses.
- D. fluid loss of 0.5 liters.
Correct Answer: A
Rationale: The correct answer is A: fluid retention of 1.5 liters. The weight gain from 5 kg to 99 kg indicates an increase of 94 kg. Since 1 kg of weight gain is approximately equal to 1 liter of fluid retention, the patient has retained 94 liters of fluid. Therefore, the correct choice is fluid retention of 1.5 liters.
Choice B is incorrect because the weight gain indicates fluid retention, not loss. Choice C is incorrect as it mentions equal intake and output, which does not match the weight gain observed. Choice D is incorrect as it suggests fluid loss, which contradicts the weight gain.
The patient is on intake and output (I&O), as well as daily weights. The nurse notes that output is considerably less than intake over the last shift, and daily weight is 1 kg more than yesterday. The nurse should
- A. draw a trough level after the next dose of antibiotic.
- B. obtain an order to place the patient on fluid restriction.
- C. assess the patient’s lungs.
- D. insert an indwelling catheter.
Correct Answer: C
Rationale: The correct answer is C: assess the patient's lungs. The discrepancy between intake, output, and weight gain indicates a potential fluid imbalance. By assessing the patient's lungs, the nurse can identify signs of fluid overload, such as crackles or difficulty breathing, which could explain the weight gain and imbalance. This step is crucial in determining the underlying cause and guiding further interventions. Drawing a trough level (A) or inserting an indwelling catheter (D) are not necessary at this point and may not address the immediate issue. Placing the patient on fluid restriction (B) should only be considered after a thorough assessment to determine the cause of the imbalance.
Peritoneal dialysis is different from hemodialysis in that peritoneal dialysis
- A. is more frequently used for acute kidney injury.
- B. uses the patient’s own semipermeable membrane (peritoneal membrane).
- C. is not useful in cases of drug overdose or electrolyte imbalance.
- D. is not indicated in cases of water intoxication.
Correct Answer: B
Rationale: The correct answer is B because peritoneal dialysis uses the patient's own semipermeable membrane, the peritoneal membrane, to filter waste and excess fluid from the blood. This membrane allows for the exchange of fluids and solutes, making it an effective method for dialysis.
A is incorrect because peritoneal dialysis can be used for acute kidney injury.
C is incorrect as peritoneal dialysis can address drug overdose and electrolyte imbalance by removing toxins and balancing electrolytes.
D is incorrect as peritoneal dialysis can be used in cases of water intoxication by helping to remove excess fluid from the body.
The patient is admitted with acute kidney injury from a postrenal cause. Acceptable treatments for that diagnosis include: (Select all that apply.)
- A. bladder catheterization.
- B. increasing fluid volume intake.
- C. ureteral stenting.
- D. placement of nephrostomy tubes.
Correct Answer: A
Rationale: The correct answer is A. Bladder catheterization helps relieve urinary obstruction, a common postrenal cause of acute kidney injury. It allows urine to drain freely from the bladder.
- B: Increasing fluid volume intake may worsen the condition by increasing the pressure on the obstructed kidneys.
- C: Ureteral stenting is used for intrarenal causes, not postrenal causes.
- D: Placement of nephrostomy tubes bypasses the obstruction but is usually reserved for more severe cases.