Grandview Medical Center

Chemistry profiles and testing are performed continuously each day.  These tests are prioritized by the order of the physician — “STAT”, “Urgent”, or “Routine”

CHEMISTRY PROCEDURES REQUIRING PATIENT PREPARATION:

1. The following procedures require fasting for accurate results:
   1. Gastrin
   2. Glucose
   3. Glucose Tolerance
   4. Iron
   5. Lipid Profile – 12-14 hours since last food
   6. Triglyceride – 12-14 hours since last food
2. The following procedures require special timing:
   1. Digoxin –  Blood drawn 8 hours following dose
   2. Theophylline –  Blood drawn 8 hours following dose
   3. B12 and Folate –  Blood drawn prior to a B12 administration
   4. Trobramycin, Gentamicin, Vancomycin

i.    Trough –  Blood drawn 15-30 minutes before dose

ii.    Peak –

1. IM injection – Blood drawn 1 hours after dose
2. 30 minute IV infusion –  Blood drawn 30 minutes after IV infusion completed
3. 60 minute IV infusion  –  Blood drawn immediately after IV infusion completed

1. 1. PSA  –  Blood drawn prior to prostate massage
   2. Tegretol

i.    Tablet dose –  Blood drawn 4-5 hours after dose

ii.    Suspension  –  Blood drawn one to one and one half hours after dose