A postoperative patient who had surgery for a perforated gastric ulcer has been receiving nasogastric suction for 3 days. The patient now has a serum sodium level of 127 mEq/L (127 mmol/L). Which prescribed therapy should the nurse question?
Administer IV morphine sulfate 4 mg every 2 hours PRN.
Dextrose 5% in 0.9% sodium chloride, continuous infusion.
Infuse 5% dextrose in water at 125 mL/hr.
Neurologic assessment Q2 hours.
The Correct Answer is C
Choice A reason: This statement is false. IV morphine sulfate is a pain medication that can be given as needed to the postoperative patient. It does not affect the serum sodium level.
Choice B reason: This statement is false. Dextrose 5% in 0.9% sodium chloride is a hypertonic solution that can be used to treat hyponatremia, or low serum sodium level. It provides both glucose and sodium to the patient.
Choice C reason: This statement is true. 5% dextrose in water is a hypotonic solution that can cause further dilution of the serum sodium level. It can worsen the hyponatremia and increase the risk of cerebral edema and seizures.
Choice D reason: This statement is false. Neurologic assessment Q2 hours is a necessary intervention for a patient with hyponatremia, as it can monitor for signs of neurologic deterioration such as confusion, lethargy, or coma.
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Related Questions
Correct Answer is C
Explanation
Choice A reason: This statement is false. Nephropathy is a term that refers to any disease or damage of the kidneys. Acetaminophen overdose can cause nephropathy, but it is not the most serious toxic effect. Nephropathy can manifest as reduced urine output, increased blood urea nitrogen and creatinine levels, and electrolyte imbalance.
Choice B reason: This statement is false. Tachycardia is a term that refers to a fast heart rate, usually more than 100 beats per minute. Acetaminophen overdose can cause tachycardia, but it is not the most serious toxic effect. Tachycardia can be a sign of dehydration, fever, pain, or anxiety.
Choice C reason: This statement is true. Liver dysfunction is the most serious toxic effect of acute acetaminophen overdose. Acetaminophen is metabolized by the liver and can produce a toxic byproduct that damages the liver cells. Liver dysfunction can manifest as jaundice, abdominal pain, nausea, vomiting, and elevated liver enzymes.
Choice D reason: This statement is false. Central nervous system depression is a term that refers to a reduced level of consciousness, alertness, and responsiveness. Acetaminophen overdose can cause central nervous system depression, but it is not the most serious toxic effect. Central nervous system depression can be a sign of hypoxia, hypoglycemia, or drug intoxication.
Correct Answer is A
Explanation
Choice A reason: This statement is true. Fluid volume deficit, or hypovolemia, is a condition where the body loses more fluid than it gains. It can be caused by fluid loss from vomiting, diarrhea, bleeding, or excessive sweating. Fluid volume deficit can lead to dehydration, hypotension, tachycardia, and shock.
Choice B reason: This statement is false. Sodium imbalance, or dysnatremia, is a condition where the blood sodium level is either too high or too low. It can be caused by fluid imbalance, kidney disease, hormonal disorders, or medications. Sodium imbalance can affect the brain function, causing confusion, seizures, or coma.
Choice C reason: This statement is false. Potassium imbalance, or dyskalemia, is a condition where the blood potassium level is either too high or too low. It can be caused by kidney disease, acid-base disorders, medications, or dietary intake. Potassium imbalance can affect the heart function, causing arrhythmias, cardiac arrest, or death.
Choice D reason: This statement is false. Fluid volume excess, or hypervolemia, is a condition where the body gains more fluid than it loses. It can be caused by fluid overload, heart failure, kidney failure, or liver disease. Fluid volume excess can lead to edema, hypertension, dyspnea, and pulmonary congestion.
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