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.
Hyperkalemia.
Hyponatremia.
Hypocalcemia.
The Correct Answer is C
Choice A rationale
Hypermagnesemia is less common with vomiting and diarrhea. These conditions usually cause a loss of magnesium rather than an excess.
Choice B rationale
Hyperkalemia is also less typical. Vomiting and diarrhea tend to cause potassium loss, leading to hypokalemia instead.
Choice C rationale
Hyponatremia is common as vomiting and diarrhea result in the loss of sodium and water, leading to low blood sodium levels.
Choice D rationale
Hypocalcemia is not a primary result of vomiting and diarrhea. Calcium levels are usually not directly affected by gastrointestinal fluid loss.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Placing a thick layer of stool on the specimen card is incorrect. For fecal occult blood testing, a thin smear of stool is needed to accurately detect any hidden blood. A thick layer can obscure the test results and lead to false negatives.
Choice B rationale
Urinating prior to collecting the stool specimen is essential to prevent contamination. Urine can dilute the stool sample, potentially affecting the accuracy of the fecal occult blood test results.
Choice C rationale
Discontinuing supplements containing vitamin C 24 hours before the test is crucial. Vitamin C can interfere with the chemical reaction in fecal occult blood tests, leading to false-negative results by reducing the detectable levels of hemoglobin.
Choice D rationale
Refraining from consuming pork 7 days before the test is important because certain foods, including red meat like pork, can contain animal hemoglobin, potentially causing false-positive results in fecal occult blood tests.
Correct Answer is A
Explanation
Choice A rationale
Reviewing the client's photograph in the medical record is an effective method to ensure accurate identification. This practice aligns with patient safety protocols and minimizes the risk of medication errors by confirming the patient's identity through a visual match with a documented image.
Choice B rationale
Requesting an assistive personnel to identify the client might be unreliable if the personnel is unfamiliar with the client or makes an error. This approach does not provide a secure verification method and could lead to mistakes.
Choice C rationale
Asking the client to state their room number is not reliable since a client with advanced dementia may not remember their room number accurately. This method does not ensure proper identification and can lead to errors.
Choice D rationale
Having the client state their phone number is inappropriate for clients with advanced dementia, who may struggle to recall such information. This method is not a secure or accurate way to verify identity.
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