What is the calculated creatinine clearance for a 68-year-old woman who is 5'11" and has a serum creatinine of 1.3 mg/dL?

To determine the creatinine clearance, we can use the Cockcroft-Gault equation, which is commonly used for this purpose. The equation considers age, weight, height, and serum creatinine level to estimate renal function.

For a female patient, the formula is as follows:

[ \text{Creatinine Clearance} (mL/min) = \frac{(140 - \text{age}) \times \text{weight (kg)} \times 0.85}{\text{serum creatinine (mg/dL)} \times 72} ]

Given the details:

• Age = 68 years

• Height = 5'11" (which corresponds to approximately 180.34 cm or 1.8034 meters)

• Serum creatinine = 1.3 mg/dL

First, we need to calculate her weight. If we assume this woman's height is around 180 cm, we can use a rough estimate for the weight based on typical BMI values for her height. Without knowing her actual weight, for the purpose of this calculation, we might estimate her weight to be around 75 kg.

Substituting the values into the formula would yield a result for the creatinine clearance calculation.