Nokea
What does actively transporting electrolytes from an area of higher concentration to an area of lower concentration require?
- A. Hydrostatic pressure
- B. Osmotic pressure
- C. Blood pressure
- D. Pulse pressure
Correct Answer: A
Rationale: Electrolytes are moved by hydrostatic pressure, which is a form of active transport.
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What is the nurse closely assessing for in a patient with hypokalemia?
- A. Systemic edema
- B. Cardiac complications
- C. Muscle cramping
- D. Impaired kidney function
Correct Answer: B
Rationale: Hypokalemia can affect cardiac function.
When administering intravenous (IV) fluids the nurse ensures that the IV fluids are infusing as ordered to prevent dehydration in an adult. When could dehydration become lethal?
- A. If the patient loses 5% of body fluid
- B. If the patient loses 10% of body fluid
- C. If the patient loses 15% of body fluid
- D. If the patient loses 20% of body fluid
Correct Answer: D
Rationale: A loss of 20% of body fluid in an adult is fatal.
A patient began vomiting and continued to do so for several hours. What is the result of this loss of stomach contents?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory acidosis
- D. Respiratory alkalosis
Correct Answer: B
Rationale: The most common cause of metabolic alkalosis is vomiting gastric contents.
The nurse uses a diagram to show that fluids in the interstitial and intravascular compartments are combined. What do they combine to form?
- A. Intercellular compartment
- B. Circulating compartment
- C. Vertical compartment
- D. Extracellular compartment
Correct Answer: D
Rationale: The fluids in the interstitial and intravascular compartments are combined to form the extracellular compartment.
The nurse explains that a normal adult will lose approximately 350 mL of water through respiration in the course of a(n) __.
Correct Answer: day
Rationale: Adults lose about 350 mL of water daily through respiration.