An intensive care nurse is initiating a heparin protocol for a client weighing 80 \text{ k… — NCLEX-RN

An intensive care nurse is initiating a heparin protocol for a client weighing $80 \text{ kg}$ who was recently diagnosed with a pulmonary embolism. The medical prescription indicates a continuous intravenous infusion at $18 \text{ units/kg/hr}$ . The pharmacy delivers a premixed bag labeled 'Heparin sodium $25,000 \text{ units}$ in $500 \text{ mL}$ of $0.45\% \text{ NaCl}$ '. Based on these parameters, how many $\text{mL/hr}$ will the infusion pump be programmed to deliver? (Round the final answer to the nearest tenth.)

$28.8$ Cevap
B
$13.1$
C
$14.4$
D
$63.4$

Cevap

The infusion pump should be programmed to deliver

28.8 \text{ mL/hr}

The correct rate is

28.8

because the client requires

1440 \text{ units/hr}

(

80 \text{ kg} \times 18 \text{ units/kg/hr}

), and the available concentration is

50 \text{ units/mL}

(

25,000 \text{ units} \div 500 \text{ mL}

). Dividing the required dose by the available concentration (

1440 \div 50

) yields exactly

28.8 \text{ mL/hr}

Adım Adım Çözüm

Calculate the total hourly heparin dose required based on the client's weight.

80 \text{ kg} \times 18 \text{ units/kg/hr} = 1440 \text{ units/hr}

The prescription is weight-based, so the initial step is to determine the absolute number of units needed per hour.

Determine the concentration of the available heparin solution.

25,000 \text{ units} \div 500 \text{ mL} = 50 \text{ units/mL}

To calculate the volume to be infused, the amount of medication in each milliliter of the provided bag must be known.

Calculate the required infusion rate in mL/hr.

1440 \text{ units/hr} \div 50 \text{ units/mL} = 28.8 \text{ mL/hr}

Dividing the desired hourly dose by the concentration yields the exact volume to administer per hour.

Anahtar Kavram

Weight-based continuous intravenous medication calculation

Soru

Cevap

Adım Adım Çözüm

Anahtar Kavram

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