A nurse is preparing to administer 1 mg vitamin K to a newborn. The medication is available in 1 mg/0.5 mL. How much should the nurse administer?
(Round to the nearest tenth. Use a leading zero when applicable. Do not use a trailing zero.)
The Correct Answer is ["0.5"]
Step 1: Determine the dosage required. Required dosage = 1 mg
Step 2: Determine the concentration of the available solution. Available concentration = 1 mg/0.5 mL
Step 3: Calculate the volume to be administered. Volume to be administered = Required dosage ÷ Available concentration Volume to be administered = 1 mg ÷ (1 mg ÷ 0.5 mL)
Step 4: Perform the division. 1 ÷ (1 ÷ 0.5) = 1 ÷ 2 = 0.5
Step 5: Round the answer to the nearest tenth. Rounded volume = 0.5 mL
The nurse should administer 0.5 mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason:
Distorted perceptual field is more commonly associated with severe anxiety or panic attacks rather than moderate anxiety. In severe anxiety, a person’s ability to perceive reality can be significantly impaired, leading to distorted perceptions and an inability to focus.
Choice B reason:
Urinary frequency can be a symptom of anxiety, but it is not specifically indicative of moderate anxiety. It can occur in various levels of anxiety, including mild, moderate, and severe. However, it is not as prominent a symptom as others like rapid speech or restlessness.
Choice C reason:
Rapid speech is a common symptom of moderate anxiety. Individuals with moderate anxiety often exhibit signs of increased nervousness and agitation, which can manifest as rapid or pressured speech. This symptom reflects the heightened state of arousal and the difficulty in controlling anxious thoughts.

Correct Answer is ["4"]
Explanation
Step 1: Determine the dosage required. Required dosage = 40 mg
Step 2: Determine the concentration of the available solution. Available concentration = 10 mg/mL
Step 3: Calculate the volume to be administered. Volume to be administered = Required dosage ÷ Available concentration Volume to be administered = 40 mg ÷ 10 mg/mL
Step 4: Perform the division. 40 ÷ 10 = 4
= The nurse should administer 4 mL.
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