6.3 Specimen Collection & Basic Care

Specimen Collection Within the CNA Scope

CNAs routinely collect urine and stool specimens. The exam tests correct technique, infection control, and labeling, because a contaminated or mislabeled specimen leads to wrong treatment for the wrong resident. Before collecting any specimen, wash your hands and put on gloves, follow standard precautions (treat all body fluids as potentially infectious), explain the procedure so the resident can cooperate, and provide privacy.

Three labeling and handling rules carry the most exam weight: label the container at the bedside with the resident's full identifiers immediately after collection (never pre-label or label from memory at the desk), keep the outside of the container clean, and deliver the specimen to the lab or designated area promptly so it does not degrade.

Urine Specimen Types

For a clean-catch, the goal is a specimen free of skin and perineal contamination, which is why cleaning and the midstream catch both matter. For a 24-hour collection, the timing must be continuous: a single missed void invalidates the whole test and it must restart, so explain this clearly to the resident, post a reminder sign per facility policy, and remind every staff member caring for that resident.

Stool Specimens and Scope Limits

Stool Specimen

Have the resident void first so urine does not contaminate the sample, then have them move their bowels into a clean bedpan or specimen hat — not into the toilet water. Wearing gloves, use the tongue blade or scoop to transfer the required amount into the container without touching the inside of the container or lid. Note color, consistency, and any blood or mucus, cap the container, label it at the bedside, and send it promptly. Some stool tests (such as occult-blood cards) have special steps; follow the nurse's and the kit's directions exactly.

When you remove your gloves and finish, wash your hands, help the resident with hygiene and hand-washing, and dispose of waste per facility policy. As with every specimen, the chain of accuracy depends on the basics: right resident, right container, clean technique, bedside label, prompt delivery. If a specimen cannot go to the lab right away, follow facility policy on refrigeration so it does not degrade, and document the collection time so the lab knows how old the sample is.

Blood Glucose — Know the Scope Limit

Finger-stick blood glucose monitoring involves a skin puncture and a blood sample. In the basic Florida CNA scope of practice, blood glucose testing is not a routine CNA task. Some Florida facilities allow it only when the CNA has completed additional state-approved training, is competency-checked, and is specifically authorized in writing by the facility and the nurse.

• If a question asks whether a basic CNA performs a finger-stick glucose check, the safe answer is that it is outside the basic CNA scope unless additionally trained and authorized.
• The CNA does observe and report signs of low blood sugar (shakiness, sweating, confusion, weakness, hunger) and high blood sugar (excessive thirst, frequent urination, drowsiness, fruity breath) to the nurse.
• The CNA does support diabetic care by reporting whether the resident ate, following the care plan for meal timing, and assisting with foot care and daily skin checks.

Scope-of-Practice Principle and Accuracy Recap

A recurring Florida exam theme: when a task involves an invasive procedure, sterile technique, medication administration, or clinical judgment, it is usually outside the CNA scope. The correct CNA action is to observe accurately, report to the nurse, and stay within trained and authorized tasks. Performing a task you are not authorized to do — even when a nurse asks — puts the resident at risk and your registry standing in jeopardy; the right response is to communicate the scope limit, not to silently comply or to refuse rudely.

Why Specimen Accuracy Matters

Exam Tip

Watch for answer choices that have the CNA improvise — adding water to a 24-hour container, estimating a missed void, performing an unauthorized finger-stick, or labeling at the desk instead of the bedside. These are always wrong. The correct answers keep the specimen clean, complete, correctly labeled at the bedside, and promptly delivered, and keep the CNA inside the authorized scope.