A client is hospitalized for observation after suffering heat exhaustion during a marathon race. He complains of dizziness when he stands up, and the RN determines that he has postural hypotension. Based on the information, which of the following electrolyte imbalances could cause the client's symptoms?
Hypernatremia
Hyponatremia
Hyperkalemia
Hypokalemia
The Correct Answer is B
Choice A reason: Hypernatremia is a condition of high sodium levels in the blood. It can cause symptoms such as thirst, dry mouth, confusion, agitation, and seizures. It is not likely to cause postural hypotension, which is a drop in blood pressure when changing positions.
Choice B reason: Hyponatremia is a condition of low sodium levels in the blood. It can cause symptoms such as headache, nausea, vomiting, muscle weakness, fatigue, and confusion. It can also cause postural hypotension, as sodium helps regulate fluid balance and blood pressure.
Choice C reason: Hyperkalemia is a condition of high potassium levels in the blood. It can cause symptoms such as muscle weakness, paralysis, irregular heartbeat, and cardiac arrest. It is not likely to cause postural hypotension, which is more related to fluid and sodium levels.
Choice D reason: Hypokalemia is a condition of low potassium levels in the blood. It can cause symptoms such as muscle cramps, weakness, fatigue, constipation, and arrhythmias. It is not likely to cause postural hypotension, which is more related to fluid and sodium levels.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Weight-bearing exercise, such as walking, jogging, or dancing, helps to strengthen the bones and prevent osteoporosis. It also improves muscle strength, balance, and coordination, which can reduce the risk of falls and fractures.
Choice B reason: Having a bone density scan every year is not necessary for a young adult client who has a family history of osteoporosis. A bone density scan is a test that measures the amount of calcium and other minerals in the bones. It is usually recommended for women over 65 years old, men over 70 years old, or people who have risk factors for osteoporosis, such as low body weight, smoking, or steroid use.
Choice C reason: Taking a magnesium supplement every day is not a proven way to prevent osteoporosis. Magnesium is a mineral that is involved in bone formation and metabolism, but there is not enough evidence to support its role in preventing or treating osteoporosis. A balanced diet that includes foods rich in calcium, vitamin D, and other nutrients is more effective for bone health.
Choice D reason: Drinking a cup of coffee every morning is not a good idea for a young adult client who has a family history of osteoporosis. Coffee contains caffeine, which can interfere with the absorption of calcium and increase the excretion of calcium in the urine. This can lead to lower bone density and higher risk of osteoporosis. Moderate coffee consumption (one or two cups per day) may not have a significant effect on bone health, but excessive coffee intake (more than four cups per day) should be avoided.
Correct Answer is C
Explanation
Choice A reason: An open wound is a concern for a diabetic client, as it can increase the risk of infection and delay the healing process. However, it does not require an immediate focused assessment, unless it is bleeding profusely, infected, or showing signs of tissue damage.
Choice B reason: Depression is a common complication of diabetes, as it can affect the client's mood, self-care, and adherence to treatment. However, it does not require an immediate focused assessment, unless the client is suicidal, psychotic, or unable to function.
Choice C reason: Chest pain is a symptom that can indicate a life-threatening condition, such as a heart attack, pulmonary embolism, or aortic dissection. It requires an immediate focused assessment, as it can compromise the client's cardiac and respiratory function and lead to death.
Choice D reason: Diabetes is a chronic condition that affects the client's blood glucose levels and can cause various complications, such as neuropathy, nephropathy, and retinopathy. However, it does not require an immediate focused assessment, unless the client is experiencing a hyperglycemic or hypoglycemic crisis.
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