A nurse is reviewing the laboratory results for a client who reports vomiting and diarrhea for 2 days.
Which of the following laboratory findings should the nurse expect?
Hypermagnesemia.
Hyponatremia.
Hypocalcemia.
D. Hyperkalemia.
The Correct Answer is B

This means low sodium levels in the blood.
Sodium is an electrolyte that helps regulate fluid balance and nerve and muscle function.
Vomiting and diarrhea can cause dehydration and loss of sodium through fluids.
Normal sodium levels are between 135 to 145 millimole/Liter.
Choice A is wrong because hypermagnesemia means high magnesium levels in the blood.
Magnesium is another electrolyte that helps with nerve and muscle function, as well as blood pressure and blood sugar regulation.
Hypermagnesemia is rare and usually caused by kidney failure or excessive use of magnesium supplements or laxatives.
Normal magnesium levels are between 1.46 to 2.68 milligram/deciliter.
Choice C is wrong because hypocalcemia means low calcium levels in the blood.
Calcium is an electrolyte that helps with bone health, muscle contraction, blood clotting and nerve signaling.
Hypocalcemia can be caused by vitamin D deficiency, kidney disease, thyroid problems or certain medications.
Normal calcium levels are between 8.8 to 10.7 milligram/deciliter.
Choice D is wrong because hyperkalemia means high potassium levels in the blood.
Potassium is an electrolyte that helps with nerve and muscle function, especially the heart.
Hyperkalemia can be caused by kidney disease, diabetes, adrenal gland disorders or certain medications.
Normal potassium levels are between 3.6 to 5.5 millimole/Liter.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["7"]
Explanation
Determine the total daily dose required in milligrams:
The prescribed dose is 80 mg/kg/day.
The child's weight is 35 kg.
Totaldailydose=80mg/kg/day×35kg
Calculate the total daily dose:
Totaldailydose=2800mg/day
Divide the total daily dose into four doses:
Doseperadministration: 2800mg/day ÷ 4 =700mg
Determine the volume of the oral suspension to administer per dose:
The available concentration of sucralfate oral suspension is 1 g/10 mL.
Convert 1 g to mg:
1g=1000mg.
Calculate the volume needed for 700 mg:
Volume(mL) = Desireddose(mg)÷Concentration(mg/mL)
Concentration = 1000mg÷10mL = 100mg/mL
Volume(mL) = 700 mg ÷ 100mg/mL
= 7 mL
Therefore, the nurse should administer 7 mL of sucralfate oral suspension per dose.
Correct Answer is A
Explanation
The correct answer is choice A. Evaluate the client’s concerns and communicate them to the provider.
This is because the nurse’s role as a patient advocate is to speak, act or behave in a way that benefits their patient, who may not be able to support or promote their own needs or interests.
The nurse should provide patients with information regarding their diagnoses, prognoses, treatments, and alternatives, and serve as a patient’s voice when necessary.
Choice B is wrong because contacting the unit’s social worker to report the client’s refusal is not an appropriate action for the nurse to take as a patient advocate.
The nurse should respect the patient’s autonomy and right to refuse treatment, and not involve other professionals without the patient’s consent.
Choice C is wrong because asking the client’s partner to find out why the client has refused the procedure is not an appropriate action for the nurse to take as a patient advocate.
The nurse should communicate directly with the patient and not rely on third parties to obtain information or influence the patient’s decision.
Choice D is wrong because explaining the necessity of the procedure to the client is not an appropriate action for the nurse to take as a patient advocate.
The nurse should not impose their own values or opinions on the patient, but rather provide unbiased and factual information and support the patient’s informed choice.
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