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question 13
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the order in the chart reads 0.2 g of the drug. you find the stock drug labelled 10 mg/ml. how many ml do you give?
______ ml

question 14
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you are to give 20,000 units of a drug. the label reads 50,000 units/5 ml. how many ml do you give?
______ ml

question 15
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order = 0.2 g. stock = 400 mg each tablet. how many tablets do you give?
______ tab

Explanation:

Question 13

Step1: Convert grams to milligrams

Since \( 1\space g = 1000\space mg \), then \( 0.2\space g = 0.2\times1000 = 200\space mg \).

Step2: Calculate volume using formula \( Volume=\frac{Desired\space Dose}{Concentration} \)

The concentration is \( 10\space mg/mL \), so \( Volume=\frac{200\space mg}{10\space mg/mL}=20\space mL \).

Step1: Use the proportion formula \( \frac{Dose\space Ordered}{Concentration}=\space Volume \)

The concentration is \( \frac{50000\space units}{5\space mL}=10000\space units/mL \).

Step2: Calculate volume

\( Volume=\frac{20000\space units}{10000\space units/mL}=2\space mL \).
Or using the formula \( Volume=\frac{Dose\space Ordered\times Volume\space of\space Stock}{Dose\space of\space Stock} \), so \( Volume=\frac{20000\times5}{50000}=2\space mL \).

Step1: Convert grams to milligrams

\( 0.2\space g = 0.2\times1000 = 200\space mg \).

Step2: Calculate number of tablets using \( Number\space of\space Tablets=\frac{Desired\space Dose}{Dose\space per\space Tablet} \)

\( Number\space of\space Tablets=\frac{200\space mg}{400\space mg/tablet}=0.5\space tablet \).

Answer:

20

Question 14