Nokea
Which of the following electrolytes does aldosterone influence the kidneys to save and/or excrete?
- A. Sodium
- B. Chloride
- C. Potassium
- D. Magnesium
Correct Answer: A,C
Rationale: Aldosterone promotes sodium reabsorption and potassium excretion in the kidneys.
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Your knowledge of which of the following pieces of data regarding potassium takes highest priority?
- A. Never give KCl IV push.
- B. Never administer potassium chloride by the direct intravenous route.
- C. $\mathrm{KCl}$ given IV push can cause fatal cardiac arrhythmias.
- D. Yes, this is a trick question. All of the above choices are essentially the same, but you probably will be able to remember to never give $\mathrm{KCl}$ direct IV push.
Correct Answer: D
Rationale: All statements emphasize the danger of administering potassium chloride IV push, which can cause fatal cardiac arrhythmias, making this knowledge critical.
An older adult, or senior, with cardiac disease such as heart failure is at risk for fluid-volume overload. Which of the following interventions might be appropriate?
- A. Provide some coffee or tea as part of daily fluid intake.
- B. Restrict fluids.
- C. Increase salt intake.
- D. Monitor daily weights.
Correct Answer: B,D
Rationale: Fluid restriction and monitoring daily weights help manage fluid-volume overload in heart failure patients to prevent worsening of the condition.
The Institute of Medicine recommends that an average adult needs????.milligrams of potassium per day for optimal health.
- A. 3500
- B. 4000
- C. 3700
- D. 2800
Correct Answer: A
Rationale: The Institute of Medicine recommends approximately 3500 mg of potassium daily for adults to support optimal health.
ANF is another hormone that affects the body's water level. Which of the following statements regarding ANF are accurate?
- A. ANF's production is signaled when baroreceptors detect abnormally low pressure, meaning that blood volume is too low.
- B. ANF inhibits renin production by the kidneys.
- C. ANF causes sodium to be retained by the kidneys.
- D. The end result of ANF increases water loss through the kidneys.
Correct Answer: B,D
Rationale: Atrial natriuretic factor (ANF) inhibits renin production, promoting sodium and water excretion, which increases water loss through the kidneys.
The average adult needs to drink how much water each day?
- A. 0.5 L
- B. 1 L
- C. 1.5 to 2 L
- D. 2 to 3 L
- E. 3 to 4 L
Correct Answer: D
Rationale: The average adult requires 2 to 3 liters of water daily to maintain proper hydration, depending on activity level and environmental factors.