Lab report names starting with U

Abbreviations

• U CreatUrine Creatinine, RandomHow much creatinine, a muscle waste product, is in one urine sample. It shows how concentrated the urine is and is used to correct other urine results.
• U K 24hUrine Potassium, 24-HourThe total potassium that left your body in urine over 24 hours, which mostly follows how much potassium you eat.
• U Na 24hUrine Sodium, 24-HourThe total sodium that left your body in urine over 24 hours, which mostly follows how much sodium you eat.
• U-Hg 24hMercury, 24-Hour UrineTotal mercury passed in urine over 24 hours, mostly from inorganic or elemental mercury such as vapor from spills, fillings or work exposure.
• U-RBCUrine Red Blood Cells (RBC)Counts red blood cells in your urine under a microscope or analyzer, per high-power field (HPF). A few can be usual.
• U&ERenal Function PanelLab panelBasic metabolic panel plus phosphorus and albumin.
• U&EUrea and Electrolytes (U&E)Lab panelUK and Commonwealth kidney panel: sodium, potassium, urea, creatinine and eGFR.
• U1-RNPAnti-U1-RNP Antibody (RNP)Looks for antibodies to U1-RNP. They are most closely linked with mixed connective tissue disease and can also appear in lupus and related conditions.
• UA CastsUrine Casts (Other / Unspecified)Casts are tiny tube-shaped particles that can show up in urine. This entry covers casts reported without a type; 'none seen' is the usual result.
• UA NitriteUrine Nitrite (Dipstick)Checks for nitrite, a chemical some urinary bacteria make. A positive result can be an early clue to a urinary tract infection.
• UA pHUrine pHShows how acidic or alkaline your urine is. It moves with diet and some medicines, and it is not the same as your blood pH.
• uACRUrine Albumin/Creatinine Ratio (uACR)Compares albumin, a protein, with creatinine in a urine sample to show whether your kidneys are letting protein leak into urine.
• UBGUrine Urobilinogen (Dipstick)A byproduct of bilirubin that normally shows up in small amounts in urine. A dipstick gives a rough check of it as part of a urinalysis.
• UCa/CrUrine Calcium-to-Creatinine RatioCalcium in one urine sample compared with creatinine, which adjusts for how dilute the urine is. It is used for stone and bone work-ups in adults and children.
• UClUrine Chloride, RandomChloride in one urine sample. Clinicians mainly use it to help work out why blood bicarbonate is high. It is not a routine test.
• UCrUrine Creatinine, RandomHow much creatinine, a muscle waste product, is in one urine sample. It shows how concentrated the urine is and is used to correct other urine results.
• UCr 24hUrine Creatinine, 24-HourTotal creatinine in all the urine you pass over 24 hours. It mostly reflects muscle mass and helps show whether a 24-hour collection was complete.
• UCxUrine CultureTests whether bacteria grow from your urine and, if they do, which kind and how many. It helps your clinician judge whether an infection is likely.
• UDSUrine Drug ScreenLab panelImmunoassay screen for common drug classes; positives need confirmation.
• UDSUrine Drug Screen (Panel Result)A urine test that checks for several drugs at once. A positive screen is a first look, and a second test is used to check it.
• UDTUrine Drug Screen (Panel Result)A urine test that checks for several drugs at once. A positive screen is a first look, and a second test is used to check it.
• uEtGEthyl Glucuronide (EtG), UrineA by-product of alcohol that stays in urine for a day or more after drinking, long after the alcohol itself has left the blood.
• UFCCortisol, Free, 24-Hour UrineMeasures the free (active) cortisol your body clears in urine over a full day. It is one of the standard first tests when Cushing syndrome is a question.
• UFC-24Cortisol, Free, 24-Hour UrineMeasures the free (active) cortisol your body clears in urine over a full day. It is one of the standard first tests when Cushing syndrome is a question.
• UIBCUnsaturated Iron-Binding Capacity (UIBC)How much of your blood's iron-carrying capacity is still empty. Added to serum iron, it gives total iron-binding capacity (TIBC).
• UKUrine Potassium, RandomHow much potassium is in a single urine sample, which varies with diet and urine concentration, so it is read with a blood potassium.
• UNaUrine Sodium, RandomHow much sodium is in a single urine sample, which swings with what you ate and drank, so clinicians read it with blood tests.
• UosmUrine OsmolalityHow concentrated your urine is, counted as dissolved particles per kilogram of water. It mostly reflects how much you have had to drink and how your kidneys and hormones balance water.
• UPCRUrine Protein/Creatinine Ratio (UPCR)Compares the protein in a urine sample with its creatinine to estimate how much protein your kidneys are letting into your urine.
• Uprot/CrUrine Protein/Creatinine Ratio (UPCR)Compares the protein in a urine sample with its creatinine to estimate how much protein your kidneys are letting into your urine.
• UPThCG, Qualitative (Urine Pregnancy Test)A urine test that says only whether hCG, the pregnancy hormone, is present above the test's cutoff. It is reported as positive or negative.
• UREA NBlood Urea Nitrogen (BUN)BUN is a waste product from protein breakdown that your kidneys clear from the blood, so it gives a rough read on kidney function and hydration.
• UROUrine Urobilinogen (Dipstick)A byproduct of bilirubin that normally shows up in small amounts in urine. A dipstick gives a rough check of it as part of a urinalysis.
• USGUrine Specific GravityHow concentrated your urine is compared with plain water. It mostly reflects how much fluid you've had and how well your kidneys balance water.