Medical Tests
Explore lab tests, blood work, and imaging exams with plain-language preparation and overview pages.
Browse Directory Sections
Tests starting with O (2,433)
Other
On how many days in the past 12 months have you had this pain [PhenX]
Other
On how many days was your fatigue worse in the morning in past 7 days [PROMIS]
Other
On how many of these occasions did you or your partner use a condom in the past 12 months [PhenX]
Other
On how many rooms were new carpets or rugs installed [#] [RIOPA]
Other
On scheduled pain medication regimen in last 7 days [MDSv3]
Other
On the average during the last 2 weeks, how many of these pills, or medication items, did you take a day, week, or month [PhenX]
Other
On the average of the entire time you smoked, how many cigarettes did you smoke per day [PhenX]
Other
On the average over the entire time you smoked a pipe, how much pipe tobacco did you smoke per week [PhenX]
Other
On the average over the entire time you smoked cigars, how many cigars did you smoke per week [PhenX]
Other
On the average, when you smoke, or on the last day you smoked every day, about how many cigarettes do, or did, you smoke [PhenX]
Other
On the days that you drank during the past 30 days, how many drinks did you usually have each day [PhenX]
Other
On the number of days you reported you smoked cigarettes during the past 30 days, how many cigarettes did you smoke per day, on average [PhenX]
Other
On the whole, I am satisfied with myself [Rosenberg]
Other
On those days that you engage in moderate to strenuous exercise, how many minutes, on average, do you exercise
Other
On transplant waiting list [ESRD]
Other
On what date did that pregnancy end [PhenX]
Other
On which side was your breast operation [FACIT]
Other
Once I get going on something I hate to stop [UPPS-P]
Blood test
Onchocerca sp Ab [Units/volume] in Serum
Blood test
Onchocerca sp IgG Ab [Measurement] in Serum
Blood test
Onchocerca sp IgG Ab [Presence] in Serum by Immunoassay
Blood test
Onchocerca sp IgG Ab [Units/volume] in Serum
Blood test
Onchocerca sp IgG Ab [Units/volume] in Serum by Immunoassay
Blood test
Onchocerca sp IgG2 Ab [Measurement] in Serum
Blood test
Onchocerca sp IgG2 Ab [Presence] in Serum by Immunoassay
Blood test
Onchocerca sp IgG2 Ab [Units/volume] in Serum
Blood test
Onchocerca sp IgG2 Ab [Units/volume] in Serum by Immunoassay
Blood test
Onchocerca sp IgG3 Ab [Measurement] in Serum
Blood test
Onchocerca sp IgG3 Ab [Presence] in Serum by Immunoassay
Blood test
Onchocerca sp IgG3 Ab [Units/volume] in Serum
Blood test
Onchocerca sp IgG3 Ab [Units/volume] in Serum by Immunoassay
Blood test
Onchocerca sp IgG4 Ab [Measurement] in Serum
Blood test
Onchocerca sp IgG4 Ab [Presence] in Serum by Immunoassay
Blood test
Onchocerca sp IgG4 Ab [Units/volume] in Serum
Blood test
Onchocerca sp IgG4 Ab [Units/volume] in Serum by Immunoassay
Other
Onchocerca sp identified in Tissue by Wet preparation
Other
Oncofertility consultation note
Other
Oncologic chromosome analysis in Tissue by Mate pair sequencing
Other
Oncology Admission history and physical note
Other
Oncology Consult note
Other
Oncology Diagnostic Study Note
Other
Oncology Discharge instructions
Other
Oncology Discharge summary
Other
Oncology Discharge teaching note
Other
Oncology Education note
Other
Oncology Evaluation note
Other
Oncology Flowsheet
Other
Oncology Form
Other
Oncology History and physical note
Other
Oncology Hospital Progress note
Other
Oncology Initial evaluation note
Other
Oncology Letter
Other
Oncology Medication management note
Other
Oncology Note
Other
Oncology Outpatient Note
Other
Oncology Outpatient Progress note
Other
Oncology Plan of care and summary note
Other
Oncology Plan of care note
Other
Oncology Progress note
Other
Oncology Recommended cancer surveillance
Other
Oncology Recommended follow-up tests or procedures
Other
Oncology Referral note
Other
Oncology Summary note
Other
Oncology Telehealth Note
Other
Oncology Telephone encounter Note
Other
Oncology Transfer summary note
Other
Oncology plan of care and summary - recommended CDA R1.2 sections
Other
Oncology plan of care and summary - recommended CDA set
Other
Oncology procedure note
Blood test
Ondansetron induced platelet IgG Ab [Presence] in Serum or Plasma by Flow cytometry (FC)
Blood test
Ondansetron induced platelet IgM Ab [Presence] in Serum or Plasma by Flow cytometry (FC)
Other
One of the parents went to jail [PhenX]
Other
One of your children seems very unhappy [PhenX]
Other
One of your children spends too much time away from the house [PhenX]
Other
One or more children do not do well enough at school or work [PhenX]
Other
One or more foot problems [Minimum Data Set]
Other
One or more of my arms are swollen or tender in the past 7 days [FACIT]
Other
One or more unhealed pressure injuries stage 1 or higher during assessment period [CMS Assessment]
Other
One parent was away from home more often [PhenX]
Other
One step (curb) during two day assessment period [CARE]
Other
One-third mean filling rate Left ventricle SPECT --resting
Blood test
Oneseed Juniper IgE Ab [Units/volume] in Serum
Other
Ongoing problem episode reason Narrative
Blood test
Onion IgE Ab [Presence] in Serum by Radioallergosorbent test (RAST)
Blood test
Onion IgE Ab [Units/volume] in Serum
Blood test
Onion IgE Ab [Units/volume] in Serum or Plasma by Immunoassay
Blood test
Onion IgE Ab/IgE total in Serum
Blood test
Onion IgG Ab [Mass/volume] in Serum
Blood test
Onion IgG Ab [Presence] in Serum by Radioallergosorbent test (RAST)
Blood test
Onion IgG Ab [Units/volume] in Serum
Blood test
Onion IgG Ab [Units/volume] in Serum or Plasma by Immunoassay
Blood test
Onion IgG4 Ab [Mass/volume] in Serum
Blood test
Onion triggered histamine release [Units/volume] in Blood
Other
Onset of labor [US Standard Certificate of Live Birth]
Other
Onset of painful contractions
Other
Onset psychiatric illness [DI-PAD]
Other
Onyong-nyong virus IgG Ab [Presence] in Specimen by Immunoassay
Other
Onyong-nyong virus IgM Ab [Presence] in Specimen by Immunoassay
Other
Onyong-nyong virus RNA [Presence] in Specimen by NAA with probe detection
Other
Onyong-nyong virus neutralizing antibody [Titer] in Specimen by Neutralization test