Poct 3477 (2024)

FAQs

What does POCT mean for drug testing? ›

Rapid point-of-collection testing (POCT) provides on-site screening for drugs of abuse, urine specimen validity and saliva alcohol following Labcorp's chain of custody protocol.

Definition and Basics. A basic 4 panel drug test involves collecting a urine sample which is then scanned for drug metabolites. The test is designed to scan employees' use of opiates, marijuana, cocaine, and methamphetamines. Tests can also be performed to look for benzodiazepines, ecstasy, methadone, and Oxycodone.

Urine drug testing generally requires a minimum of 30 mL of urine (depending on the kit type) collected in a private restroom. In the authors' experience, the sample collection most often is unobserved in clinical practice. Most laboratories keep urine samples for a limited time, often 7 days.

The pH for normal urine fluctuates throughout the day but usually is in the range of 4.5 to 8.0. Specimen contamination should be suspected if the pH level is less than 3 or greater than 11 or if the specific gravity is less than 1.002 or greater than 1.020.

An agreement of POCT values was validated with the concurrently sampled venous blood values. The normal range of sodium and potassium were considered as 135-145 meq/L and 3.5-5.5 meq/L, respectively. The upper limit of normal for BUN was 18mg/dL¹², and for lactate 2mmol/L¹³.

Point-of-Care Testing (POCT) is clinical laboratory testing conducted close to the site of patient care where care or treatment is provided.[1] POCT provides rapid turnaround of test results with the potential to generate a result quickly so that appropriate treatment can be implemented, leading to improved clinical or ...

Point of care (POC) Urinalysis tends to refer to the first two testing phases and does not include microscopy. Specific strips (cartridges) are also used for the determination of Urinary albumin, often termed microalbumin, and the Albumin/ Creatinine ratio as part of the assessment of kidney disease.

Cloudiness or an unusual odor can indicate a problem, such as an infection. Protein in urine can make it appear foamy. Blood in the urine can make it look red or brown. Urine color can be influenced by what you've just eaten or by certain drugs you're taking.

Clinically, a false positive urine drug screen can be due to numerous xenobiotics: dextromethorphan, diphenhydramine, doxylamine, ibuprofen, imipramine, ketamine, meperidine, venlafaxine, buproprion, methylenedioxpyrolvalerone (MDPV), and tramadol.

How do I read my urine test results? ›

A urine pH of 8.5–9 may indicate a UTI. If you have a UTI, your urine may be acidic or alkaline. The urine is more likely to be alkaline with a pH of 8.5–9 when the infection is caused by certain urease-producing bacteria. However, it is important to note that a UTI may still be present if your urine is acidic.

Invalid result: Refers to the result reported by a laboratory for a urine specimen that contains an unidentified adulterant, contains an unidentified interfering substance, has an abnormal physical characteristic, or has an endogenous substance at an abnormal concentration that prevents the laboratory from completing ...

A high urine pH may be due to: Kidneys that do not properly remove acids from the bloodstream (renal tubular acidosis) Kidney failure. Stomach pumping (gastric suction to remove fluid from the stomach)

POCT devices are typically smaller and easier to use than laboratory equipment, and they can provide results quickly, often within minutes. Laboratory tests are typically more accurate and sensitive than POCT tests, but they can take longer to get results, sometimes days.

The most common POCT tests include blood glucose monitoring, home pregnancy tests, rapid strep, hemoglobin, as well as prothrombin time/international normalized ratio tests.

Osborn et al. found that sensitivity and specificity were 99.1% (95% CI 94.8-100.0) and 71.0% (95% CI 64.4-76.9), respectively, for invasive POCT Hgb and 81.6% (95% CI 72.5-88.7) and 75.4% (95% CI 68.8-81.1), respectively, for non-invasive POCT Hgb.

Point-of-Care Testing (POCT) is testing that takes place near a patient's location, specifically in situations where a rapid turnaround time (TAT) can have a profound impact on patient care outcomes.