A nurse is preparing to administer potassium chloride elixir 40 mEq divided into 2 equal doses every 12 hr. Available is 6.7 mEq/5 mL. How many mL should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Answer and Explanation

The Correct Answer is ["15"]

Order: Potassium chloride elixir 40 mEq divided into 2 equal doses every 12 hours
Supply: 6.7 mEq/5 mL

Divide total daily dose into 2 doses:
40 mEq ÷ 2 = 20 mEq per dose
Set up proportion to find volume for 20 mEq:
6.7 mEq : 5 mL = 20 mEq : X mL
Cross-multiply:
6.7 × X = 20 × 5
6.7X = 100
X = 100 ÷ 6.7
X ≈ 14.93
Round to the nearest whole number: 15 mL

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Free Nursing Study Resources

Correct Answer is C

Explanation

A. Aging is typically associated with decreasedbalance due to changes in the musculoskeletal and nervous systems.
B. Older adults usually experience muscle loss(sarcopenia), not an increase in muscle mass.
C. This is a common age-related change due to degeneration of cartilage, reduced synovial fluid, and joint wear, leading to decreased mobility and increased stiffness.
D. Aging generally leads to bone demineralization(such as in osteoporosis), making bones more brittle, not more calcified.

A. Creatinine 0.4 mg/dL B. BUN 9.5 mg/dL C. Sodium 135 mEq/L D. Potassium level 3 mEq/L

Correct Answer is D

Explanation

A. A creatinine level of 0.4 mg/dL is slightly below the normal range (typically 0.6–1.3 mg/dL) but is not immediately life-threatening.
B. A BUN of 9.5 mg/dL is within the normal range (7–20 mg/dL) and not concerning.
C. A sodium level of 135 mEq/L is at the lower end of the normal range (135–145 mEq/L), so it's not a priority.
D. A potassium level of 3 mEq/Lis below the normal range (3.5–5.0 mEq/L) and is prioritybecause hypokalemiacan lead to life-threatening cardiac arrhythmiasand muscle weakness.

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Naxlex Comprehensive Predictor Exams

A nurse is assessing an older adult client who is experiencing age-related changes. Which of the following findings should the nurse expect?

Correct Answer is C

Explanation

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Correct Answer is D

Explanation

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