Testosterone Free/Total + SHBG Blood Test Collection Location:Pathology Collection Centre the aldosterone:renin ratio (ARR) is

the aldosterone:renin ratio (ARR) is the standard screening test for primary hyperaldosteronism

the result alone doesn't tell you where it's coming from

Available at Healius pathology centres

Measures magnesium inside red blood cells for a more accurate picture of tissue-level stores than serum testing

Requires a 10 to 12 hour fast

Testosterone Free/Total + SHBG Blood Test Collection Location:Pathology Collection Centre the aldosterone:renin ratio (ARR) isMeasures total testosterone, calculated free testosterone, and SHBG in a single blood draw. Used to investigate low testosterone in men and androgen excess in women. Morning collection required, as testosterone peaks in the early hours.