the healthcare provider prescribes phytonadione (aquamephyton) 250 mcg im to be administered to an infant…

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.)

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:

$0.13$