Asymmetric Dimethylarginine, Plasma
Use
Asymmetric dimethylarginine (ADMA) is an independent risk factor for major adverse cardiovascular events. ADMA inhibits nitric oxide synthesis and is elevated in diseases involving endothelial dysfunction, including hypertension, hyperlipidemia, and type II diabetes mellitus. Elevated plasma ADMA confers a 4‑ to 6‑fold increased risk of subsequent cardiovascular events or mortality in patients with acute coronary syndrome, unstable angina, type II diabetes mellitus, end‑stage renal disease, coronary heart disease, and peripheral artery disease even after adjusting for LDL‑C, HDL‑C, triglycerides, creatinine, and hs‑CRP. Plasma ADMA concentrations are lowered by rosuvastatin and atorvastatin but not simvastatin, and vildagliptin added to metformin significantly reduces ADMA concentrations in type II diabetes mellitus patients. ADMA assists in assessing the likelihood of future coronary events in patients with coronary heart disease, type II diabetes mellitus, or kidney disease and in prompting intervention and assessing improvements among subjects with elevated ADMA and hypercholesterolemia or type II diabetes mellitus.
Special Instructions
If not ordering electronically, complete, print, and send a Cardiovascular Test Request Form (T724) with the specimen.
Limitations
No significant cautionary statements were noted. Specimen suitability is evaluated at Mayo Clinic Laboratories, and appropriate handling is essential to ensure test integrity.
Methodology
Mass Spectrometry (LC-MS/MS)
Biomarkers
LOINC Codes
- 80981-4
- 80981-4
Result Turnaround Time
2-9 days
Related Documents
For more information, please review the documents below
Specimen
Plasma
Volume
1 mL
Minimum Volume
0.5 mL
Container
Lavender top (EDTA); plastic vial for aliquot
Collection Instructions
Centrifuge and aliquot 1 mL of plasma into a plastic vial. Send specimen frozen.
Patient Preparation
Fasting: 12 hours, required
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 7 days |
| Refrigerated | 7 days |
| Frozen | 90 days |
