A nurse is caring for four clients who have various types of drainage tubes.
Which of the following clients should the nurse identify as being at risk for hypokalemia?

The client who has an indwelling urinary catheter to gravity drainage

The client who has a chest tube to water seal

The client who has a nasogastric (NG) tube to suction

The client who has a tracheostomy tube attached to humidified oxygen

Answer and Explanation

The Correct Answer is C

Choice A rationale

The client who has an indwelling urinary catheter to gravity drainage is not at risk for hypokalemia. The kidneys regulate the balance of potassium by removing excess potassium into the urine. The use of a urinary catheter would not affect this process.

Choice B rationale

The client who has a chest tube to water seal is not at risk for hypokalemia. Chest tubes are used to treat conditions that can cause the lung to collapse, such as pneumothorax, hemothorax, or pleural effusion. They do not affect the body’s potassium levels.

Choice C rationale

The client who has a nasogastric (NG) tube to suction is at risk for hypokalemia. Hypokalemia, or low potassium levels, can occur with loss of gastric fluids because these fluids contain potassium. With an NG tube to suction, these fluids are being removed from the body, which can lead to a decrease in potassium levels.

Choice D rationale

The client who has a tracheostomy tube attached to humidified oxygen is not at risk for hypokalemia. A tracheostomy tube allows air to enter the lungs. It does not affect the body’s potassium levels.

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Correct Answer is B

Explanation

Choice B rationale

The umbilical cord normally contains two arteries and one vein. The arteries carry deoxygenated blood and waste products from the fetus to the placenta, and the vein carries oxygenated blood and nutrients from the placenta to the fetus.

A. Sweat test B. Haptoglobin C. Schilling test D. Antinuclear antibodies .

Correct Answer is C

Explanation

Choice A rationale

A sweat test is used to diagnose cystic fibrosis, a genetic disorder that affects the lungs and digestive system. It is not used to diagnose pernicious anemia.

Choice B rationale

Haptoglobin is a protein produced by the liver that binds to hemoglobin in the blood to prevent it from being excreted through the kidneys. While it can be used to diagnose conditions that cause the destruction of red blood cells, it is not used to diagnose pernicious anemia.

Choice C rationale

The Schilling test is used to determine whether the body absorbs vitamin B12 normally, which is crucial for the diagnosis of pernicious anemia. Pernicious anemia is a condition where the body is unable to absorb vitamin B12 due to a lack of intrinsic factor, a protein made in the stomach.

Choice D rationale

Antinuclear antibodies (ANAs) are a type of autoantibody that can attack the body’s own tissues. While they can be present in various autoimmune diseases, they are not used to diagnose pernicious anemia.

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A nurse is caring for four clients who have various types of drainage tubes.Which of the following clients should the nurse identify as being at risk for hypokalemia?

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A nurse is caring for four clients who have various types of drainage tubes.
Which of the following clients should the nurse identify as being at risk for hypokalemia?