Integrated Capillary and Special Collections Skills Assessment

Objective. Students will demonstrate end-of-course competency by independently performing a fingerstick collection, a heelstick on a neonatal model, and a point-of-care glucose test with full documentation, meeting all safety and quality standards without instructor prompting.

What This Assessment Measures

This lab session is your end-of-course practical assessment for Capillary and Special Collections. You will work through three timed stations — an adult fingerstick, a neonatal heelstick with newborn screen, and a point-of-care (POC) glucose test — without instructor prompting. The instructor will observe silently and score every step on the same competency checklist you have practiced with all semester. Passing requires a composite score of at least 80%, and every critical safety step must be rated satisfactory with zero critical errors.

Think of this as a dress rehearsal for the real work environment. Employers and certifying bodies (NHA, AMT, ASCP) expect a Certified Phlebotomy Technician to perform these skills independently, safely, and accurately every time.

Station 1 — Adult Fingerstick OSCE

An Objective Structured Clinical Examination (OSCE) station scores you against a fixed checklist, not against other students. The clock starts when the instructor says "begin."

Patient identification comes first, every time, without exception. Verify at least two patient identifiers (for example, full name and date of birth) against the labeled order. Skipping ID is a critical error that automatically fails the station regardless of how well everything else goes.

Site selection: Choose the fleshy pad of the middle or ring finger, slightly to the side of center, avoiding the fingertip (more nerve endings, less tissue depth) and the index finger or thumb (used frequently in daily life). Warm the site if circulation appears poor.

Lancet selection: Use an adult-depth safety lancet appropriate for the specimen volume needed. Activate it once with a single motion perpendicular to the fingerprint lines so the incision crosses ridges rather than running parallel, yielding better flow.

Order of draw for capillary specimens: EDTA (lavender or pink microtainer) is collected first for hematology to minimize platelet clumping, followed by other additive tubes, then serum tubes. This is the reverse of venipuncture order.

Collection technique: Wipe away the first drop (tissue fluid contamination), then apply gentle, intermittent pressure — do not squeeze or milk aggressively, which hemolyzes cells and dilutes the specimen. Fill each microtainer to the indicated line.

Labeling must happen before you leave the patient's side. Write or affix the label while the specimen is still with the patient.

Sharps safety: Immediately drop the used lancet into the sharps container without recapping. Never set a used lancet on the bench.

Station 2 — Heelstick and Newborn Screen

Neonatal collections require extra care because the patient cannot communicate pain or distress clearly, and the consequences of error — wrong specimen, contaminated filter paper, incorrect labeling — can delay life-saving metabolic screening.

Warming the heel: Apply a commercial heel warmer or warm compress (following manufacturer or facility guidelines for temperature and time) to the lateral or medial plantar surface of the heel. Warming increases blood flow and reduces the number of punctures needed. Never apply heat above the recommended temperature or leave it in place longer than directed — infant skin burns quickly.

Safe zone: Puncture only the lateral or medial plantar heel surface. Avoid the posterior curve of the heel, fingers, and any previously punctured or bruised areas. Use a neonatal safety lancet; never use an adult lancet on an infant — penetration depth can reach bone and cause osteomyelitis.

Filling microtainers: As with adult capillary collection, wipe the first drop, then collect gently. Fill each tube to the line.

Newborn screening filter paper (NBS card): Touch the large side of the filter paper circle to a single, large drop of blood. Allow blood to soak completely through to the printed circle on both sides — do not press the paper onto the heel, layer drops, or scratch the paper. Each circle must be filled in one application from one drop. Allow the card to air-dry completely, flat and horizontally, away from direct heat or sunlight. Contamination (serum rings, insufficient fill, multiple applications) invalidates the card and requires a redraw, delaying screening for serious metabolic disorders.

Labeling: Affix the simulated neonatal ID label to all microtainers and to the demographic section of the NBS card before releasing specimens.

Station 3 — POC Glucose with Critical Value Communication

Quality control before patient testing: Run low and high control solutions before using the glucometer on a patient. Both results must fall within the manufacturer's stated acceptable range printed on the test strip vial. If either control fails, do not test the patient — troubleshoot the instrument first. Document control results, lot numbers, and expiration dates on the POC log.

Patient testing: Perform the fingerstick as described in Station 1. Apply the sample to the test strip as directed (usually touching the strip edge to the drop). Read the result displayed and document it immediately on the POC log with the date, time, patient ID, operator ID, and result.

Critical value notification: Laboratories and facilities define critical (panic) glucose values — results so far outside the normal range that immediate clinical action is required. When the instructor announces a critical value, you must notify the responsible provider or nurse promptly using a verbal read-back: state the patient name, the result, the units, and confirm by asking the receiver to read the value back to you. Document who you notified, the time, and that read-back was confirmed. This closed-loop communication is a patient safety requirement, not a courtesy.

Preparing for Zero Critical Errors

Review your competency checklist before the session. Every critical step — patient ID, correct device for the patient population, sharps safety, correct site — must be performed correctly. A single omission in these areas fails that station regardless of your overall score. Use your preparation time to mentally walk through each station in order. Confidence comes from deliberate practice; use it today.

Key terms8

OSCE (Objective Structured Clinical Examination)A standardized practical examination format in which a student performs a clinical skill at a defined station while an examiner scores performance against a fixed checklist, ensuring objective, consistent evaluation.

Order of draw (capillary)The required sequence for filling microtainer tubes from a capillary collection: EDTA tubes first, then other additive tubes, then serum tubes — the reverse of venipuncture order.

Newborn screening (NBS) filter paper cardA standardized card containing printed circles onto which infant heel-stick blood is spotted and dried for laboratory analysis to screen for metabolic, endocrine, and other heritable conditions shortly after birth.

Critical valueA laboratory result so markedly abnormal that it may indicate a life-threatening condition requiring immediate clinical intervention; must be reported promptly to a responsible provider using a verified read-back process.

Quality control (POC)The process of running commercially prepared control solutions of known concentration through a point-of-care device before patient testing to confirm the instrument, reagents, and operator technique are producing accurate results.

Verbal read-backA closed-loop communication technique in which the person receiving a critical result repeats it back to the reporter, who then confirms accuracy, reducing the risk of miscommunication in urgent clinical situations.

Neonatal safety lancetA lancet engineered with a blade or needle limited to a shallow, controlled penetration depth appropriate for infant heel tissue, preventing puncture deep enough to contact bone and cause osteomyelitis.

HemolysisThe breakdown of red blood cells, releasing intracellular contents into the specimen; in capillary collection, often caused by aggressive squeezing or milking of the puncture site, rendering the specimen unsuitable for many tests.

In class: Timed fingerstick OSCE station: without prompting, student performs a complete adult fingerstick on a training model — verifying patient identity, selecting site and lancet, collecting into the correct microtainer in order of draw, labeling, and disposing of sharps — while the instructor silently scores a competency checklist. · Heelstick and newborn screen station: student warms a neonatal model heel, performs a heelstick using a neonatal device, fills two microtainer tubes and spots two filter paper circles correctly, then labels all specimens with a simulated neonatal ID label. · Point-of-care glucose with critical value communication: student runs a QC check, performs a fingerstick glucose on a training model, documents the result on a POC log, and — if the instructor announces the result as a critical value — delivers a verbal read-back notification to the instructor acting as the receiving nurse.
Materials: Fingerstick training models, neonatal foot simulation models, neonatal safety lancets, adult safety lancets, heel warmers, microtainers, filter paper cards, training glucometer with controls and strips, POC log forms, specimen labels, gloves, gauze, sharps containers, competency checklist
Check: All three stations scored on the same competency checklist used throughout the course; all critical safety steps (patient ID, sharps safety, correct site, correct device) must be rated 'satisfactory' with zero critical errors; overall composite score minimum 80% required to pass the course practical assessment.

Practice check8

Answer each question, then check it. Nothing is recorded; this is your own practice.