Lab Medicine

Question 1

TSH is most useful to detect

Answer 1

hyperthyroidism/hypothyroidms(all generations)

Question 2

This can be used to monitor treatment for hypothyroidism

Answer 2

TSH

Question 3

Which is more accurate: free T4 or T4?

Answer 3

Free T4 is unaffected by pregnancy, drugs liver function and is therefore a more accurate assessment

Question 4

most accurate measure of thyroid function

Answer 4

Free T4

Question 5

Standard initial treatment for thyroid screening because it’s cheap and fast

Answer 5

T4

Question 6

When do you use T3 levels?

Answer 6

mainly used for hyperthyroidism; not reliable for hypothyroidism

Question 7

When do you use T3 resin uptake?

Answer 7

would never do this test alone and would only ever do it in combo with total T4

Question 8

What is serum thyroglobulin useful for?

Answer 8

thyroid cancer

Question 9

How long is a fasting glucose?

Answer 9

No PO (except water) for 8 hours

Question 10

Define random blood sugar

Answer 10

A random sample of blood glucose; if it’s over 200 +polyuria/polydipsia think DM

Question 11

Define hemoglobin A1c

Answer 11

indicative of glucose control over the last 2-3 months; does not change rapidly and does not require fasting; the higher your A1c the more likely you are to develop complications of diabetes