6.10 Point-of-Care Testing

6.10 Point-of-Care Testing

Point-of-care testing (POCT) brings laboratory assays to the bedside or draw station for rapid results. Task 5.10 expects phlebotomy technicians to understand that speed never suspends quality rules—training, QC, correct specimen type, and documentation still govern every result.

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Common POCT Examples

Your facility's POCT menu may be larger (hemoglobin, blood gases, rapid strep). Only perform tests you are trained and competency-assessed to run.

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Waived Testing Under CLIA

The Clinical Laboratory Improvement Amendments (CLIA) categorize tests by complexity. Waived tests are simple with low risk of erroneous results when manufacturers' directions are followed—but “waived” does not mean unregulated or optional.

Even waived POCT programs typically require:

• A CLIA certificate appropriate to the site
• Written procedures and current package inserts
• Operator training and periodic competency checks
• Quality control at defined intervals
• Result recording in the medical record
• Proficiency testing or alternative assessments when required by the program

If directions are not followed, a waived test can still produce a wrong answer that harms a patient.

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Operator Training

Before independent POCT:

1. Read the procedure and manufacturer insert.
2. Demonstrate correct specimen collection and meter/kit operation.
3. Show QC performance and troubleshooting.
4. Complete competency documentation signed by the POCT coordinator or designee.
5. Requalify when policy requires (new lots, method changes, or annual competency).

Do not “borrow” another employee's login for a meter data manager. Results must attach to the correct operator for quality tracing.

QC Before Patient Testing

Run external liquid controls and internal checks on the schedule required—often each day of patient testing, with each new reagent lot, and after failed results or instrument maintenance.

Failed QC → no patient testing until corrected. This rule is identical to the equipment QC section and is frequently tested.

Patient results obtained on a meter that was not in control are unreliable and must not be reported as valid without following the laboratory's corrective protocol.

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Specimen Type: Capillary vs Venous

Manufacturers validate meters and kits for specific specimen types. A glucometer cleared for capillary whole blood may not give equivalent results with venous samples—or may require a venous mode. Urine hCG kits are not automatically validated for diluted random specimens collected hours earlier without refrigeration.

Practical rules:

• Use the specimen type listed in the procedure
• Wipe away the first drop for many capillary glucose methods if the insert requires it
• Avoid squeezing the finger excessively (tissue fluid dilution)
• Do not apply a second drop after the meter begins counting unless the device allows
• Match strip lot codes to meter calibrations/chips when required

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Critical Value Notification and Documentation

A critical value (panic value) is a result so abnormal that it may indicate a life-threatening situation (for example, extremely low glucose). When POCT yields a critical result:

1. Repeat or verify according to policy (some require a second POCT or a confirmatory laboratory specimen).
2. Immediately notify the appropriate licensed caregiver (nurse/provider) using read-back.
3. Document the result, time, person notified, and read-back confirmation.
4. Escalate if you cannot reach a caregiver—do not leave a critical hypoglycemia undocumented while finishing other draws.

Documentation for every POCT result generally includes patient identifiers, date/time, operator, kit/meter ID, QC status, result, and notification notes when applicable.

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Integrating POCT Into Phlebotomy Workflow

POCT complements, but does not replace, central laboratory testing. Know when a provider still needs a venous sample for confirmation. Keep reagent strips capped and in-date, meters clean, and privacy maintained when discussing pregnancy or glucose results aloud.

Point-of-care excellence is disciplined rapid testing: trained operator, passing QC, correct specimen, accurate record, and fast communication of dangerous results.

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Exam Application Focus

For AMCA PTC items related to 6.10 Point-of-Care Testing, read every scenario for the patient-safety action and the specimen-integrity action. If an option speeds the workflow but breaks identification, antisepsis, documentation, fill volume, or custody rules, it is incorrect. Prefer answers that match written procedure, communicate with nursing or the laboratory when timing or access is uncertain, and protect the patient after the needle is removed. Practicing this decision pattern turns memorized facts into exam-ready judgment and safer daily collections.

Use facility procedure manuals as the final authority for product names, exact contact times, and documentation forms. Certification exams test widely accepted principles; workplaces may add stricter steps. When principles and local policy both appear in a question, choose the option that preserves safety and validity without inventing unauthorized shortcuts.