Timed Draws, Tolerance Tests, TDM and Blood Alcohol
Timed tests are only valid when drawn at the right time and labeled with the actual collection time; blood alcohol sites are cleaned with a non-alcohol antiseptic.
Order priority and timed draws
| order | meaning | source |
|---|---|---|
| STAT | From Latin statim: collect immediately, ahead of routine work | ADLM Clinical Laboratory News 2019 |
| Timed | Collected at a set time or interval because the result depends on when it is drawn (for example cortisol: morning and around 4 p.m.) | MedlinePlus (cortisol test) |
| Collection time | The requisition must ask for the date and, when appropriate, the time of collection; for timed draws, record the time the sample was actually drawn | 42 CFR 493.1241(c)(6); Kang 2009 |
Preview only. The full sheet also covers: Therapeutic drug monitoring (TDM); Tolerance tests; Blood alcohol (ethanol).
Sources
- Melanson SEF. Strategies (You Will Need a Few) on How to Decide Upon and Provide Necessary STAT Testing. Clinical Laboratory News, Bench Matters, March 1, 2019 · Association for Diagnostics & Laboratory Medicine (ADLM)
- Cortisol Test (Medical Test) · MedlinePlus, U.S. National Library of Medicine
- 42 CFR 493.1241 Standard: Test request · National Archives, eCFR
- Kang JS, Lee MH. Overview of Therapeutic Drug Monitoring. Korean J Intern Med 2009;24(1):1-10 · Korean Journal of Internal Medicine via PubMed Central
- Glucose tolerance test - non-pregnant (Medical Encyclopedia; facts checked only) · MedlinePlus, U.S. National Library of Medicine
- Glucose screening tests during pregnancy (Medical Encyclopedia; facts checked only) · MedlinePlus, U.S. National Library of Medicine
- Lactose Tolerance Tests (Medical Test) · MedlinePlus, U.S. National Library of Medicine
- Glucose, Two-hour Postprandial (test 002022): patient preparation · Labcorp
- Nikolac N, Supak-Smolcic V, Simundic AM, Celap I. Croatian Society of Medical Biochemistry and Laboratory Medicine: national recommendations for venous blood sampling (based on CLSI H3-A6). Biochem Med 2013;23(3):242-254 (PMC3900082) · Biochemia Medica via PubMed Central
- Cal. Code Regs. tit. 17, 1219 - General (forensic alcohol samples: identity and integrity maintained) · California Department of Public Health, via Cornell LII
- Cal. Code Regs. tit. 17, 1219.1 - Blood Collection and Retention (forensic alcohol analysis) · California Department of Public Health, via Cornell LII
- Blood Alcohol Level (Medical Test) · MedlinePlus, U.S. National Library of Medicine
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