A nurse is caring for a client who is taking lithium and reports starting a new exercise program.
The nurse should assess the client for which of the following electrolyte imbalances?
Hypomagnesemia.
Hypocalcemia.
Hyponatremia.
Hypokalemia.
The Correct Answer is C
Lithium can cause hyponatremia by increasing the secretion of antidiuretic hormone and reducing the renal clearance of sodium.
Strenuous exercise can also cause hyponatremia by increasing sweat loss and fluid intake. Therefore, a client who is taking lithium and starting a new exercise program is at risk of developing hyponatremia.
Choice A is wrong because hypomagnesemia is not a common side effect of lithium or exercise.
Choice B is wrong because hypocalcemia is not a common side effect of lithium or exercise.
Choice D is wrong because hypokalemia is not a common side effect of lithium or exercise.
However, lithium can interact with some diuretics that can cause hypokalemia, so the client should avoid taking these drugs without consulting their doctor. Normal ranges for electrolytes are:
Sodium: 135-145 mmol/L
Magnesium: 0.7-1.1 mmol/L
Calcium: 2.1-2.6 mmol/L
Potassium: 3.5-5.0 mmol/L
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Osmotic laxatives work by drawing water into the colon to soften the stool and stimulate bowel movements. However, excessive use of osmotic laxatives can cause fluid volume deficit, which is a state of reduced intravascular volume.
One of the signs of fluid volume deficit is oliguria, which means low urine output.
Choice B. Nausea is wrong because nausea is a common side effect of osmotic laxatives, not an indication of fluid volume deficit.
Choice C. Headaches is wrong because headaches are more likely to be caused by dehydration, which is a state of reduced total body water, mostly affecting the intracellular fluid compartment.
Dehydration can result from osmotic laxatives, but it is not the same as fluid volume deficit.
Choice D. Weight gain is wrong because weight gain is not a sign of fluid volume deficit.
Correct Answer is A
Explanation
The nurse should instruct the client to avoid drinking beverages while sucking on a nicotine lozenge because this can interfere with the absorption of nicotine and reduce its effectiveness. Some possible explanations for the other choices are:
Choice B is wrong because chewing nicotine gum for 10 minutes before spitting it out is too short.
The recommended duration is at least 30 minutes to allow enough nicotine to be released and absorbed through the lining of the mouth.
Choice C is wrong because changing the nicotine patch every other day is not frequent enough.
The patch should be changed daily and applied to a different skin site to prevent irritation and ensure a steady dose of nicotine.
Choice D is wrong because administering 2 sprays of nicotine nasal spray in each nostril with each dose is too much.
The recommended dose is one spray per nostril, up to five times per hour or 40 times per day.
Using too much nasal spray can cause side effects such as nasal irritation, sneezing, coughing, headache, or nausea.
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