cliot (version 1.0.0)

body_weight_calculations: Ideal Body Weight (IBW) and Adjusted Body Weight (ABW)

Description

Calculates Ideal Body Weight (using the Devine Formula) and Adjusted Body Weight. These metrics are essential for calculating nutritional needs and dosing medications (e.g., aminoglycosides, acyclovir) in patients who are obese or have abnormal body composition.

Usage

body_weight_calculations(sex, height, actual_weight,
                         height_units = "in", weight_units = "kg")

Value

A list containing:

Ideal_Body_Weight_kg

Calculated IBW based on Devine formula.

Adjusted_Body_Weight_kg

Calculated ABW (IBW + 0.4 * (Actual - IBW)).

Actual_Body_Weight_kg

Standardized actual weight in kg.

Percent_Over_IBW

The percentage by which actual weight exceeds IBW.

Dosing_Suggestion

Logic suggesting which weight to use for dosing based on obesity status.

Arguments

sex

String. Patient sex ("Male" or "Female").

height

Numeric. Patient height.

actual_weight

Numeric. Patient's current actual body weight.

height_units

String. Units for height input. Options: "in" (default) or "cm".

weight_units

String. Units for weight input. Options: "kg" (default) or "lbs".

References

Devine BJ. Gentamicin therapy. Drug Intell Clin Pharm. 1974;8:650–655.

Examples

# Example 1: Male, Normal Weight (70 in, 75 kg)
body_weight_calculations("male", 70, 75)

# Example 2: Female, Obese (160 cm, 90 kg)
# Height ~63 in. IBW = 45.5 + 2.3(3) = 52.4 kg.
# Actual 90 kg. ABW = 52.4 + 0.4(90-52.4) = 67.4 kg.
body_weight_calculations("female", 160, 90, "cm", "kg")