For children, heparin sodium is administered by intermittent...

For children, heparin sodium is administered by intermittent IV infusion in a range of 70 to 80 units $/ \mathrm{kg}$ of body weight every 4 hrs. For a $100-\mathrm{lb}$ child, calculate the range, in $\mathrm{mL}$, of a heparin sodium injection containing 2000 units/mL to be administered daily.

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Key Concepts

Unit Conversion

This concept involves converting a patient's weight from one unit of measurement to another, such as from pounds to kilograms. Since many medication dosages are based on weight in kilograms, it is essential to accurately convert pounds to kilograms to ensure the correct dose is administered.

Dose Calculation per Unit Weight

This concept pertains to determining the amount of a drug that should be given based on a patient's weight, commonly expressed in units per kilogram. It ensures that the administered dose is proportional to the patient's body mass, promoting both efficacy and safety.

Dosing Frequency and Cumulative Daily Dose

This concept involves understanding how often a medication is administered over a specific period (for example, every 4 hours) and calculating the total daily dose by multiplying the individual dose by the number of doses in a day. This ensures that the cumulative dosage aligns with treatment protocols.

Concentration and Volume Conversion

This concept focuses on converting a drug's dose expressed in units to the corresponding volume of solution required for administration, based on the drug's concentration (e.g., units per mL). This step is crucial for proper preparation and accurate administration of the medication.

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