PCP 10 - Dosage calculations and quantity to supply p2

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4 Terms

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What happens when you have doses based on body characteristics?

  • They are normally given as g/kg (dosage per body weight) or
    g/m2 (dosage per body surface area).

  • Make sure you are working in the correct unit system!

2
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What is IBW?

  • ideal body weight

  • calculated using patient’s height cm and their sex

  • Males IBW =( 0.9 × 𝐻) − 88 Females IBW = (0.9 × 𝐻) − 92

3
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How do you calculate body surface area ?

BSA =√H × W/3600
H = height in cm, W = weight in kg

4
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What are infusion rates ?

• Some drugs have maximum rates over which they can infused.
• Infusion rates are often given in terms of an amount per time interval.
• They may also be given per body weight