The dosage of technetium-99m for a lung scan is 20 μCi/kg of body weight: Suppose a person absorbed 52mrads of alpha radiation. What would be the dose equivalent in mrems?

Ah, radiology humor! Well, my friend, let's sprinkle some laughter on this question.

First, let's convert that dosage from microcuries to curies. One microcurie (μCi) is equal to 0.000001 curie (Ci). So, if we have 20 μCi, that is 0.00002 Ci.

Now, for the dose equivalent in millirems (mrems). We know that alpha radiation carries a quality factor of 20. The dose equivalent (in rems) is calculated by multiplying the absorbed dose (in rads) by the quality factor. But lucky for us, we're given the absorbed dose in rads already!

So, here's the equation:

Dose equivalent (in rems) = Absorbed dose (in rads) * Quality factor

Dose equivalent (in rems) = 52 mrad * 20

And voila! We have our answer:

Dose equivalent (in rems) = 1,040 mrem

Now that we've brought a little laughter to the world of radiology, I hope this answer has brightened your day, or at least brought a smile to your face!

To calculate the dose equivalent in mrems, we need to convert the absorbed dose from rads to rems. The conversion factor between rads and rems depends on the type of radiation. For alpha radiation, the quality factor (QF) is 20.

The formula to calculate the dose equivalent (DE) in rems is:
DE (rems) = Absorbed dose (rads) x Quality factor (QF)

Given that the person absorbed 52 mrads of alpha radiation, we need to convert this value to rads:
Absorbed dose (rads) = 52 mrads = 0.052 rads

Now we can calculate the dose equivalent in rems:
DE (rems) = 0.052 rads x 20 (QF for alpha radiation)
DE (rems) = 1.04 rems

Therefore, the dose equivalent in mrems would be 1040 mrems (since 1 rem = 1000 mrems).