which of the following statements is correct

ATI RN

ATI Fluid and Electrolytes

1. Which of the following statements is correct?

A. People with less body fat have more body water.
B. Infants have more water per pound than adults.
C. Females have more body water per pound than males.
D. Infants have the same water content per pound as adults.

Correct answer: A

Rationale: The correct statement is that people with less body fat have more body water. This is because fat tissue contains less water compared to lean tissue, so individuals with less body fat generally have a higher percentage of body water. Choice B is incorrect as infants actually have more water per pound than adults due to their higher body water content. Choice C is incorrect as males typically have more body water per pound than females. Choice D is incorrect as infants have a higher water content per pound compared to adults.

2. You are performing an admission assessment on an older adult patient newly admitted for end-stage liver disease. What principle should guide your assessment of the patients skin turgor?

A. Overhydration is common among healthy older adults.
B. Dehydration causes the skin to appear spongy
C. Inelastic skin turgor is a normal part of aging
D. Skin turgor cannot be assessed in patients over 70.

Correct answer: C

Rationale:

3. A female patient is discharged from the hospital after having an episode of heart failure. She's prescribed daily oral doses of digoxin (Lanoxin) and furosemide (Lasix). Two days later, she tells her community health nurse that she feels weak and her heart 'flutters' frequently. What action should the nurse take?

A. Tell the patient to rest more often.
B. Tell the patient to stop taking the digoxin and call the physician.
C. Call the physician, report the symptoms, and request to draw a blood sample to determine the patient's potassium level.
D. Tell the patient to avoid foods that contain caffeine.

Correct answer: C

Rationale: The correct action for the nurse to take is to call the physician, report the symptoms, and request to draw a blood sample to determine the patient's potassium level. Furosemide is a potassium-wasting diuretic, and low potassium levels can lead to weakness and palpitations. Resting more often won't address the underlying issue of hypokalemia caused by furosemide. While digoxin can have side effects, it is not causing the symptoms described by the patient. Avoiding caffeine may be beneficial, but addressing the potassium level is more critical in this situation.

4. A nurse is assessing clients on a medical-surgical unit. Which clients are at increased risk for hypophosphatemia? (Select all that do not apply.)

A. A 36-year-old who is malnourished
B. A 42-year-old with uncontrolled diabetes
C. A 76-year-old who is prescribed antacids
D. 50-year-old with hyperparathyroidism

Correct answer: C

Rationale:

5. A patient with hypokalemia and heart failure is admitted to the telemetry unit. The nurse is aware that hypokalemia could cause which of the following abnormalities on an electrocardiogram (ECG)?

A. Shortened P-R interval
B. Inverted T wave
C. Depressed U wave
D. Elevated U wave

Correct answer: D

Rationale: The correct answer is D: Elevated U wave. Hypokalemia is associated with ECG changes such as an elevated U wave and flattened T waves. Choice A, a shortened P-R interval, is not typically seen in hypokalemia. Choice B, an inverted T wave, is more commonly associated with ischemia or CNS injury rather than hypokalemia. Choice C, a depressed U wave, is not a typical ECG abnormality seen in hypokalemia. Therefore, the correct ECG abnormality associated with hypokalemia is an elevated U wave.