Lab report names starting with O

Abbreviations

• o215Alpha-gal IgEMeasures IgE antibodies to alpha-gal, a sugar found in red meat and other mammal products. It is linked to a tick-related allergy that causes delayed reactions.
• O3IOmega-3 Index (EPA+DHA)Shows how much of the fat in your red blood cells is the marine omega-3s EPA and DHA, a long-term picture of your fish and omega-3 intake.
• OGTTOral Glucose Tolerance Test, 2-Hour (75 g)Lab panelFasting and timed glucose values after a 75 g glucose drink.
• OGTT-1hGlucose, OGTT 1-HourBlood glucose one hour after a measured sugar drink in an oral glucose tolerance test. In pregnancy, a high 1-hour value is one criterion for gestational diabetes.
• OGTT-2hGlucose, OGTT 2-HourBlood glucose two hours after a 75 g sugar drink. It is the main OGTT value used to sort glucose tolerance into normal, prediabetes and diabetes ranges.
• OGTT-3hGlucose, OGTT 3-HourBlood glucose three hours after a 100 g sugar drink. It is the last value of the 3-hour glucose tolerance test used in pregnancy.
• OPIUrine Opiates ScreenA yes-or-no urine test for opiates such as morphine and codeine. A positive is a first-step result and can come from prescribed medicine, poppy seed foods or some antibiotics.
• Osm CalcOsmolality, CalculatedCalculated osmolality is an estimate of how concentrated your blood is, worked out from your sodium, glucose and BUN results rather than measured directly.
• OXYUrine Oxycodone ScreenA yes-or-no urine test for oxycodone, a prescription opioid pain medicine. A positive is expected if you take it as prescribed, and the screen also reacts to oxymorphone.
• β-OHBBeta-Hydroxybutyrate (BHB)Beta-hydroxybutyrate (BHB) is the main ketone your body makes when it burns fat for fuel. It rises with fasting, low-carb eating or too little insulin.