Magnesium is located primarily in the bones an inside cells. It is responsible for neuromuscular function. Normal magnesium (Mg+) level is
0.5-1.5mEq/L
1.3-2.1 mEq/L
2.5-3.5 mEq/L
1.0-3.0 mEq/L
The Correct Answer is B
B. This range represents the normal serum magnesium level. It is important for maintaining neuromuscular function and other vital processes in the body.
A. This range is too low for normal serum magnesium levels. Magnesium levels below this range can indicate hypomagnesemia, which can lead to symptoms such as muscle cramps, tremors, and cardiac arrhythmias.
C. This range is too high for normal serum magnesium levels. Elevated magnesium levels (hypermagnesemia) can occur in conditions such as renal failure or excessive magnesium intake, leading to symptoms like weakness, decreased reflexes, and in severe cases, cardiac arrest.
D. While this range is broader and includes the correct normal range (1.3-2.1 mEq/L), it also includes values that are below and above normal. Values below 1.3 mEq/L can indicate hypomagnesemia, while values above 2.1 mEq/L can indicate hypermagnesemia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
D. Tachycardia refers to an elevated heart rate. In circulatory overload, the heart may attempt to compensate for the increased fluid volume by pumping faster. This compensatory mechanism aims to maintain adequate tissue perfusion despite the excessive fluid burden.
A. Diaphoresis refers to excessive sweating. It is not typically associated with circulatory overload. Instead, diaphoresis can occur in conditions such as fever, anxiety, or during physical exertion.
B Hypotension refers to low blood pressure. In circulatory overload, the excess fluid in the circulatory system can lead to increased blood pressure rather than hypotension. Hypotension is more commonly associated with hypovolemia (low blood volume) rather than hypervolemia.
C. Weight loss is not a characteristic finding in circulatory overload. On the contrary, patients with fluid overload often experience weight gain due to retained fluid in the body tissues and bloodstream.
Correct Answer is B
Explanation
B. Dextrose 10% in water is a solution that contains a high concentration of glucose (dextrose). Infusing D10W can lead to an increase in blood glucose levels, especially if the client's body cannot metabolize the glucose effectively (e.g., in diabetic patients or those with impaired glucose tolerance).
A. Dextrose 10% in water does not contain calcium. Hypercalcemia refers to elevated calcium levels in the blood, which can occur due to various causes such as hyperparathyroidism or excessive vitamin D intake, but not from D10W infusion.
C. Dextrose 10% in water is not used to treat hypovolemia (low blood volume). It is a solution primarily used to provide calories and prevent ketosis rather than to expand circulating blood volume.
D. Dextrose 10% in water does not contain potassium. Hypokalemia (low potassium levels) can occur due to various reasons such as diuretic use, gastrointestinal losses, or inadequate intake, but it is not directly related to D10W infusion.
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