the healthcare provider prescribes phytonadio...
the healthcare provider prescribes phytonadione (aquamephyton) 250 mcg im to be administered to an infant within 1 hour of admission to the nursery. a 0.5 ml ampule labeled 2 mg in 1 ml is available. the nurse should administer how many ml? (enter numeric value only. if rounding is required, round to the nearest hundredth.)
Answer
# Explanation:
## Step1: Convert micrograms to milligrams
We know that $1\ mg = 1000\ mcg$. So, $250\ mcg=\frac{250}{1000}=0.25\ mg$.
## Step2: Set up a proportion
Let $x$ be the volume in ml to be administered. The proportion is $\frac{2\ mg}{1\ ml}=\frac{0.25\ mg}{x\ ml}$.
Cross - multiply gives $2x = 0.25\times1$.
## Step3: Solve for $x$
$x=\frac{0.25}{2}= 0.125\ ml$. Rounding to the nearest hundredth, $x = 0.13\ ml$.
# Answer:
$0.13$