Recommendations for fasting instructions prior to collection of a fasting glucose or lipid profile:
Patient may have water. Black coffee with an artificial sweetener is approved but no sugar, milk
or cream. Unsweetened tea is approved. Lipid testing requires a 12 hour fast; other fasting tests
require an 8 hour fast.

Fasting Specimens:
7-Dehydrocholesterol (Smith-Lemli-Opitz Screen), Plasma	Commercial Mailouts
Amino Acids, Quantitative, Plasma or Serum	Commercial Mailouts
Apolipoprotein B/A Ratio, Serum	Commercial Mailouts
Bile Acids, Total, Serum	Commercial Mailouts
C5, Complement, Functional, Serum	Commercial Mailouts
Cholesterol, Low-Density Lipoprotein (calculated), Plasma	Chemistry
Coenzyme Q10, Total, Serum or Plasma	Commercial Mailouts
Folate, Serum	Chemistry
Gal-1-Phos Urdyltrns Phenoytpe, RBC, Whole Blood	Commercial Mailouts
Galactosemia Confirmation Test, Blood	Commercial Mailouts
Gastrin, Serum	Commercial Mailouts
Gastrin Releasing Peptide (GRP)	Commercial Mailouts
Glucagon, Plasma	Commercial Mailouts
Glucose Tolerance Test (2 & 3 HR), Plasma	Chemistry
Helicobacter pylori Breath Test	Commercial Mailouts
Insulin, Total, Plasma	Chemistry
Leptin, Serum	Commercial Mailouts
Lipoprotein Metabolism Profile, Serum	Commercial Mailouts
Low Density Cholesterol Measured, Plasma	Chemistry
Pancreatic Polypeptide, Serum	Commercial Mailouts
PEG Insulin Assay, Plasma	Chemistry
Pepsinogen II, Plasma or Serum	Commercial Mailouts
Pipecolic Acid, Serum	Commercial Mailouts
Porphyrins Evaluation, RBC	Commercial Mailouts
Proinsulin, Plasma	Commercial Mailouts
Pyruvic Acid, Blood	Commercial Mailouts
Sterols, Plasma	Commercial Mailouts
Substance P, Serum or Plasma	Commercial Mailouts
Triglycerides, Plasma	Chemistry
Very Long Chain Fatty Acids, Whole Blood	Commercial Mailouts
Vitamin A, Serum or Plasma	Commercial Mailouts
Vitamin E, Serum	Commercial Mailouts

View article - Blood Sampling: Is Fasting Properly Defined?
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