The patient is a 30-year-old male who seems healthy. The patient has to do a blood test for some administrative forms (namely, proof of immunity to rubella and varicella), and wonder what else could be worthwhile to test.

What blood tests are worth doing for a healthy 30-year old male?

A comment deleted by a moderator suggested ​"Glucose, HbA1c, HDL and LDL cholesterol, TSH, T4, creatinine, urea, sodium, potassium".

The patient has no concern in particular, and cost is not an issue.