Minimum Sample Volumes Needed by Chemistry Laboratory


TEST
PEDIATRIC HCT <40%* TUBE TYPE**
Alanine Aminotransferase (ALT)
1 tube 1 tube PST
Ammonia
1 tube 1 tube 2 mL Lavender top
1/2 full & ON ICE
Amylase
1 tube 1 tube PST
Angiotensin-1 Converting Enzyme (ANCE)
1 tube 1 tube PST
Bilirubin Direct (BILD) and/or Total (BILT)
1 tube 1 tube PST
C-Peptide
1 tube 2 tubes PST
Calcium
1 tube 1 tube PST
Carbamazepine
1 tube 1 tube PST
Creatine Kinase (CK)
1 tube 1 tube PST
C-Reactive Protein (CRP)
1 tube 1 tube PST
Digoxin
1 tube 1 tube PST
Ferritin
1 tube 2 tubes PST
Folate
1 tube 2 tubes Red
Free Thyroxine (FT4)
1 tube 2 tubes PST
Gentamicin
1 tube 1 tube PST
Glucose
1 tube 1 tube PST
Gamma Glutamy Transpeptidase (GGT)
1 tube 1 tube PST
Hemoglobin A1C
2 tubes 2 tubes   Lav
Insulin
1 tube 2 tubes PST
Iron
1 tube 2 tubes PST
Lidocaine
1 tube 1 tube PST
Lipase (LPSE)
1 tube 1 tube PST
Magnesium
1 tube 1 tube PST
Osmolality
1 tube 1 tube PST
Phenobarbital
1 tube 1 tube PST
Phenytoin
1 tube 1 tube PST
Phosphorus, Inorganic
1 tube 1 tube PST
Protein Electrophoresis (SPE)
1 tube 1 tube Red
Theophylline
1 tube 1 tube PST
Tobramycin
1 tube 1 tube PST
Triglycerides
1 tube 1 tube PST
TSH
1 tube 2 tubes PST
Valproic Acid
1 tube 1 tube PST
Vancomycin
1 tube 1 tube PST
Vitamin B12
1 tube 2 tubes PST

* Low birth weight infants with Hematocrit less than 40%

** Tube Types (preferred tube type listed first)

PST - light green top lithium heparin with gel separator, fill with 0.6 mL whole blood

Red - red top with gel separator, fill with 0.6 mL whole blood

Lav - lavender top, fill with 0.8 mL whole blood