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What Does CSU Mean in Medical Terms?
CSU stands for catheter specimen of urine. Urine sample taken from a catheter.
catheter specimen of urine
Urine sample taken from a catheter.
Where you will see CSU
You will most often see CSU in kidney unit and dialysis charts, laboratory orders and test results, nursing notes, care plans and handovers.
Example
A laboratory request or report might list “CSU” as shorthand for catheter specimen of urine.
Related abbreviations
- 1,25-(OH)2 vitamin D — 1,25-dihydroxyvitamin D
- 14-3-3 — 14-3-3 protein (CSF)
- 17-OHP — 17-hydroxyprogesterone
- 1:1 — one-to-one observation
- 1h GTT — one-hour glucose challenge test
- 21-hydroxylase — 21-hydroxylase deficiency (CAH)
- 25-OH vitamin D — 25-hydroxyvitamin D
- 2g Na diet — two-gram sodium diet
Browse the full Medical Abbreviations guide — 5,715 entries, searchable A–Z and by specialty.
Educational reference only. This guide is for learning and quick reference. Abbreviations vary between hospitals, countries and specialties, and some are discouraged because they can be misread. Always write and interpret orders using your own institution’s approved abbreviation list, and check anything unclear with the prescriber or your local policy.