A dehydrated patient receives 1.5 mEq of sodium chloride per lb of his body weight. If the patie

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A dehydrated patient receives 1.5 mEq of sodium chloride per...

A dehydrated patient receives $1.5 \mathrm{mEq}$ of sodium chloride per $\mathrm{lb}$ of his body weight. If the patient's body weighs $75 \mathrm{lb}$, how many milliliters of $0.9 \%$ sterile saline solution should the patient be given?

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Key Concepts

Body Weight-Based Dosing

This concept involves determining the appropriate amount of a drug or fluid based on a patient's body weight. It ensures that the dose is proportional to the individual's size, which is especially important in clinical settings to avoid over- or under-dosing.

Percent Concentration Solutions

Understanding percent solutions, such as a 0.9% saline solution, is key. This indicates the mass of solute (sodium chloride) present in 100 mL of solution and is used to compute the volume needed to deliver a specific amount of the solute.

Milliequivalents in Medical Dosage

Milliequivalents (mEq) are a measure that reflects the chemical activity of ions in solution, taking into account both the amount and the valence of the ion. This unit is critical when dosing electrolytes to ensure that the patient receives the correct ionic dose.

Unit Conversion and Dimensional Analysis

This foundational concept emphasizes the process of converting between different measurement units, such as pounds to kilograms or mEq to grams, using conversion factors. It ensures that all components of a calculation are properly aligned, leading to accurate and safe dosage determinations.

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