O

Obstetric Panel, Serum, Plasma, and Whole Blood
See also: Blood Type (ABO and Rh), Blood
CBC with Automated Differential, Whole Blood
Hepatitis B Surface Antigen, Plasma
Rubella (German Measles) Antibody Immune Status (IgG)

Occult Blood, Fecal Guaiac Screen

Opiates, Urine Screen
See also: Drugs of Abuse, Urine
Drugs of Abuse Urine Screen with Reflex Confirmation, Urine + Confirm

Osmolality, Plasma
See also: Osmolality-Other, Body Fluid

Osmolality, Urine

Osmolality Gap
Osmolality, Plasma

Osmolality-Other, Body Fluid
See also: Osmolality, Plasma

Oxycodone, Urine Screen, Random
See also: Drugs of Abuse, Urine
Drugs of Abuse Urine Screen with Reflex Confirmation, Urine + Confirm