Decreased magnesium levels can be associated with which of the following?
Chronic alcoholism
Renal failure
Addison's disease
Uncontrolled diabetes mellitus
The Correct Answer is A
A. Chronic alcoholism: Chronic alcoholism is strongly associated with decreased magnesium levels. Alcohol can lead to magnesium depletion due to poor dietary intake, increased renal excretion, and impaired magnesium absorption.
B. Renal failure: Renal failure typically leads to an increase in magnesium levels because the kidneys are unable to excrete it effectively. Therefore, renal failure is more commonly associated with hypermagnesemia, not hypomagnesemia.
C. Addison's disease: Addison's disease is primarily related to adrenal insufficiency, affecting sodium, potassium, and cortisol levels, but it does not typically result in decreased magnesium levels. Hypomagnesemia is not a hallmark of Addison's disease.
D. Uncontrolled diabetes mellitus: Uncontrolled diabetes can lead to electrolyte imbalances, including potassium and sodium, but it is not directly linked to magnesium deficiency. Although magnesium loss can occur in DKA, it is not as strongly associated with diabetes as it is with chronic alcoholism.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Pulse oximetry: Pulse oximetry measures the oxygen saturation of hemoglobin in the blood, but it does not provide information about the acid-base balance or the levels of carbon dioxide (CO2) or bicarbonate (HCO3), which are critical to understanding the acid-base status of a client.
B. Bronchoscopy: A bronchoscopy is a diagnostic procedure used to view the airways and obtain tissue samples. While it is useful in evaluating airway obstruction or lung pathology, it does not assess acid-base status.
C. Arterial blood gases (ABGs): ABGs provide the most accurate and direct measurement of acid-base balance. They assess the levels of oxygen (O2), carbon dioxide (CO2), and bicarbonate (HCO3) in the blood, and provide information on respiratory function and the body’s ability to maintain acid-base homeostasis.
D. Sputum studies: Sputum studies are helpful for diagnosing infections or analyzing secretions, but they do not provide information about the client's acid-base balance or the respiratory status regarding CO2 levels.
Correct Answer is ["100"]
Explanation
Calculation:
Total volume to be infused = 50 mL.
Infusion time in minutes = 30 minutes.
Tubing drop factor = 60 gtt/mL.1
- Calculate the flow rate in drops per minute (gtt/min).
Flow rate (gtt/min) = (Total volume (mL) × Tubing drop factor (gtt/mL)) / Infusion time (min)
= (50 mL × 60 gtt/mL) / 30 min
= 3000 / 30 gtt/min
= 100 gtt/min.
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