Question

Calculate the dose of contrast (0.1mmol/kg) that should be administered to a patient weighing 176 lbs with normal kidney function in a routine MR examination.

Answer 1

To calculate the contrast dose for an MR examination, convert the patient's weight from pounds to kilograms and multiply by the dosage rate of 0.1 mmol/kg. For a patient weighing 176 pounds, the correct dose would be 8 mmol of contrast.

Step-by-step explanation:

To calculate the dose of contrast for a patient weighing 176 pounds with normal kidney function for a routine MR examination, we would first convert the patient's weight from pounds to kilograms, as medical dosages are typically calculated using the metric system. There are 2.20462 pounds in a kilogram, so the patient weighs approximately 80 kilograms (176 lbs / 2.20462 lbs/kg).

Next, we multiply the patient's weight by the contrast dosage rate which is 0.1 mmol/kg. For an 80 kg patient, the calculation would be 80 kg × 0.1 mmol/kg, which equals 8 mmol of contrast needed for the examination.

Therefore, the contrast dose that should be administered is 8 mmol.