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 D
Explanation
The correct answer is choice D. A living will can specify which medical procedures a person wants or does not want to receive in certain situations, such as when they are terminally ill or permanently unconscious.
A living will is a type of advance directive, which is a legal document that provides instructions for medical care if a person is unable to make decisions for themselves.
Choice A is wrong because a person does not need to have advance directives in order to refuse recommended treatment.
They have the right to accept or decline any medical intervention at any time, as long as they are competent and able to communicate their wishes.
Choice B is wrong because a person does not need an attorney to name a designee in their health care proxy.
A health care proxy is another type of advance directive that appoints a person to make health care decisions for someone else if they are unable to do so.
A health care proxy can be completed without involving a lawyer, as long as it meets the state’s requirements for a valid document.
Choice C is wrong because a living will cannot be an oral statement that a person agrees upon with their provider.
A living will must be in writing and follow the state’s laws for creating legal documents.
Depending on the state, a living will may need to be signed by a witness or notarized.
Correct Answer is A
Explanation
This gait pattern is used when one of the lower extremities is unable to fully bear weight due to fracture, amputation, joint replacement etc12 The client should advance both crutches and the affected leg as one unit, and then bring the unaffected leg forward to the crutches as the second unit
Choice B is wrong because keeping the crutches at the level of the axillae can cause nerve damage and reduce circulation.
The crutches should be positioned with 2 fingers of distance between the axilla and the axilla pad with the elbow flexed between 20-30 degrees
Choice C is wrong because standing with the crutch tips against the feet can cause instability and increase the risk of falling.
The crutch tips should be placed about 15 cm (6 inches) in front of and 15 cm to the side of each foot
Choice D is wrong because holding the arms straight when walking can cause fatigue and strain on the shoulders and wrists.
The client should keep a slight bend in the elbows when walking with crutches
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