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newSchoolWorks.com › VoTechWorks › Health & Personal Services › Nursing Assistant (CNA) › Clinical Practicum: Supervised Nursing Assistant Practice › Lesson 3
HLT-CNA36-08 · Lesson 3 · 25 clock hours · field

Supervised Clinical Skills: Vitals, Specimen Collection, and Restorative Care

Objective. Students accurately measure and document vital signs, collect routine specimens within CNA scope, and carry out restorative and rehabilitative nursing-assistant tasks as directed by the care plan, with all results verified by the supervising nurse.

⚠ Pending professional review

This lesson, its worked examples and its practice questions has not yet been verified by a licensed clinician in the field or by a certification or approval body. It is a study draft and may contain errors. Do not use it to make decisions about any patient or medication. Always follow your instructor, your supervising professional, and current official references and regulations.

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Supervised Clinical Skills: Vitals, Specimen Collection, and Restorative Care

This clinical lesson brings together three core CNA skill areas you will perform every shift under the direct supervision of a licensed nurse. Accuracy, communication, and strict adherence to scope of practice protect your residents and satisfy state CNA registry requirements.

Vital Signs: Measure, Interpret, and Report

Vital signs—temperature, pulse, respiration, blood pressure (BP), and oxygen saturation (pulse oximetry)—are your frontline window into a resident's condition. Small changes can signal early deterioration, so precision matters.

Temperature. Use the thermometer type approved by your facility (oral, tympanic, axillary, or temporal). Know the normal adult range for the route your facility uses. Report temperatures that fall outside the resident's established baseline to the charge nurse immediately—do not wait until the end of the shift.

Pulse. Count the radial pulse for a full 60 seconds. Note rate, rhythm (regular or irregular), and strength. A pulse that is irregular, too fast, or too slow must be reported at once.

Respiration. Count chest rises for 60 seconds. Residents often breathe differently when they know they are being watched, so count respirations while your fingers remain on the wrist as if still taking the pulse. Note depth and any unusual sounds such as wheezing or gurgling.

Blood pressure. Position the resident seated or supine with the arm at heart level. Apply the cuff snugly over the brachial artery, two finger-widths above the antecubital fossa. Inflate, then deflate slowly while auscultating for Korotkoff sounds with the stethoscope bell or diaphragm. Record systolic (first sound) and diastolic (last sound). A difference of more than a few millimeters of mercury from the resident's usual value warrants prompt nurse notification.

Pulse oximetry. Clip the sensor to a clean, warm finger. Nail polish, poor circulation, or a poorly fitting probe can give falsely low readings. Report any reading below the facility's stated threshold or any sudden drop from the resident's baseline to the nurse immediately.

Documentation and reporting. Record all five values in the facility's designated system or log within the shift, using the correct resident identifiers. Any value outside the resident's normal range must be verbally reported to the charge nurse before you document it—verbal first, then written.

Specimen Collection: Mid-Stream Clean-Catch Urine

The mid-stream clean-catch urine specimen reduces contamination so laboratory results are reliable. Your job is to coach the resident, collect or assist with collection, and route the specimen correctly—never to interpret results.

Standard precautions first. Perform hand hygiene and apply gloves before handling any specimen cup or body-fluid contact. Use a new pair of gloves if contamination occurs.

Procedure for an ambulatory resident. Provide the labeled cup and privacy. Instruct the resident to clean the urethral area with the facility-provided wipes (front to back for female residents), begin voiding into the toilet, then move the cup into the stream mid-void, then finish voiding into the toilet. Secure the lid immediately.

Labeling. A specimen with the wrong or missing identifiers is a patient-safety error. At minimum, the label must include the resident's full name, date of birth or other facility identifier, date and time of collection, and the type of specimen. Complete the requisition form with the same information. Any mismatch between the label and the form means the specimen must be recollected—never guess or alter a label.

Routing. Place the labeled, sealed specimen in the designated biohazard transport bag. Deliver it to the collection point specified by your facility. Avoid leaving specimens on counters, window sills, or in direct sunlight. Document the collection time and routing in the clinical skills log and report to the nurse.

Restorative and Rehabilitative Nursing-Assistant Tasks

Restorative care helps residents regain or maintain as much function and independence as possible. You carry out only the specific program written in the care plan—never modify exercises, add activities, or push a resident beyond what is ordered.

Range-of-motion (ROM) exercises. Passive ROM means you move the joint; active-assistive means the resident helps; active means the resident moves independently while you observe. Move each joint slowly and smoothly through its full ordered arc. Stop immediately if the resident reports pain, resistance increases suddenly, or you observe swelling or redness. Report and document any complaint of pain.

Ambulation programs. Apply the gait belt snugly around the resident's waist over clothing before any assisted walking. Stand to the resident's weaker side and slightly behind. Match your pace to the resident's. Know the ordered distance and frequency. If the resident becomes dizzy, fatigued, or short of breath, guide them to a safe seated position and call for the nurse.

Positioning schedules. Use positioning wedges, pillows, or splints exactly as described in the care plan. Reposition residents at the ordered intervals to prevent pressure injuries. Inspect skin at each turn and report redness that does not blanch or any skin breakdown to the nurse.

Documentation. After each restorative session, record the type of activity, duration, the resident's tolerance (cooperative, anxious, fatigued, etc.), and any pain complaints. A complete record protects the resident, satisfies regulatory requirements, and gives the nurse the data needed to adjust the care plan.

Safety Principles That Apply Across All Three Skills

Key terms10

Vital signsMeasurable physiological values—temperature, pulse, respiration, blood pressure, and oxygen saturation—that indicate a resident's basic body functions and overall condition.
Pulse oximetryA non-invasive method of estimating the percentage of hemoglobin saturated with oxygen, measured by a sensor clipped to a finger or earlobe.
Korotkoff soundsThe sounds heard through a stethoscope over the brachial artery when measuring blood pressure; the first sound marks systolic pressure and the last marks diastolic pressure.
Mid-stream clean-catch specimenA urine sample collected after the urethral area has been cleaned and after the initial stream of urine has been voided, reducing contamination for accurate laboratory analysis.
Standard precautionsA set of infection-prevention practices applied to every resident contact regardless of diagnosis, including hand hygiene and use of personal protective equipment when contact with body fluids is possible.
Range-of-motion (ROM) exerciseMovements that take each joint through its full arc of motion; may be passive (performed by the caregiver), active-assistive (resident assists), or active (resident performs independently), as specified in the care plan.
Gait beltA sturdy belt fastened around a resident's waist to give the nursing assistant a safe, secure handhold when assisting with transfers or ambulation.
Restorative careNursing-assistant activities designed to help residents regain, maintain, or prevent further loss of physical function, carried out according to an individualized care plan developed by the nurse or therapist.
Care planA written, individualized document that identifies a resident's needs and specifies the interventions, frequency, and goals for the care team, including nursing assistants.
Resident identifiersTwo or more pieces of information—such as full name and date of birth—used to confirm that a procedure, specimen, or medication is matched to the correct resident before any action is taken.

Worked examples4

1. You take a resident's blood pressure and get 148/92 mm Hg. Your preceptor takes it simultaneously on the same resident and gets 152/96 mm Hg. Is your reading within the acceptable verification range?
  1. Identify the verification standard: your reading must be within ±4 mm Hg of the preceptor's reading for both systolic and diastolic values.
  2. Calculate the systolic difference: 152 − 148 = 4 mm Hg.
  3. Check whether 4 mm Hg is within ±4 mm Hg: 4 ≤ 4, so the systolic difference is acceptable (at the boundary).
  4. Calculate the diastolic difference: 96 − 92 = 4 mm Hg.
  5. Check whether 4 mm Hg is within ±4 mm Hg: 4 ≤ 4, so the diastolic difference is also acceptable.
  6. Because both systolic and diastolic differences are within the ±4 mm Hg limit, the reading passes verification.
Answer: Yes. Both the systolic difference (4 mm Hg) and diastolic difference (4 mm Hg) are exactly at the ±4 mm Hg limit, which is acceptable. The reading passes preceptor verification.
2. You count a resident's radial pulse for 30 seconds and count 36 beats. What is the pulse rate per minute, and is it within the typical adult normal range of 60–100 beats per minute?
  1. Multiply the 30-second count by 2 to convert to beats per minute: 36 × 2 = 72 beats per minute.
  2. Compare 72 to the normal adult range of 60–100 beats per minute.
  3. 72 falls within 60–100, so the pulse rate is within normal range.
  4. Note: For clinical accuracy, facility policy often requires a full 60-second count, especially when rhythm is irregular.
Answer: 72 beats per minute. This is within the normal adult range of 60–100 beats per minute and does not require an immediate report solely on the basis of rate; however, also assess rhythm and strength and report any irregularity.
3. You take a resident's pulse simultaneously with your preceptor. You count 78 beats per minute; your preceptor counts 81 beats per minute. Does your reading meet the verification standard of ±2 beats/min?
  1. Calculate the difference between the two pulse counts: 81 − 78 = 3 beats per minute.
  2. Compare 3 to the allowable difference of ±2 beats per minute.
  3. 3 > 2, so the difference exceeds the verification limit.
  4. This reading does not pass verification; retake the pulse and have the preceptor observe your technique before repeating the paired measurement.
Answer: No. The difference of 3 beats per minute exceeds the ±2 beats/min verification standard. The reading must be retaken, and the preceptor should observe your technique to identify any counting error.
4. A resident's care plan calls for passive range-of-motion to the right shoulder, 10 repetitions, twice per shift. You complete the morning session in 8 minutes. The resident rates pain as 0/10 throughout and tolerates the session well. What must you document in the clinical skills log?
  1. Record the type of activity: passive range-of-motion, right shoulder.
  2. Record the number of repetitions completed: 10 repetitions.
  3. Record the session duration: 8 minutes.
  4. Record the resident's tolerance: tolerated well, cooperative, denied pain (0/10 on pain scale).
  5. Record the date, time, and your name or initials per facility policy.
  6. Because there were no pain complaints or adverse responses, verbal reporting to the nurse is still good practice but an urgent report is not required; follow facility policy on routine documentation sign-off.
Answer: Document: passive ROM, right shoulder, 10 repetitions, 8 minutes duration, resident tolerated well with no complaints of pain (0/10), date, time, and your identifier. No urgent verbal report is required, but follow facility policy for routine nurse notification.

The math in this lesson1

Learners check that BP readings differ from the preceptor by no more than plus or minus 4 mmHg.
N-Q.3
Brush up in the math halls at newSchoolWorks.com:
In class: Measure and record temperature, pulse, respiration, blood pressure, and pulse oximetry on at least five different residents per shift using facility-standard equipment, then report any value outside the resident's normal range to the charge nurse immediately and document the report in the clinical skills log. · Under nurse direction, collect a mid-stream clean-catch urine specimen following standard precautions, label it correctly with patient identifiers, complete the requisition form, and route it to the designated collection point without contamination. · Assist residents with facility-prescribed range-of-motion exercises, ambulation programs, or positioning schedules as written in the care plan, documenting each session's duration, resident tolerance, and any complaints of pain in the clinical skills log and verbally reporting to the supervising nurse.
Materials: Electronic or aneroid sphygmomanometer, stethoscope, thermometer, pulse oximeter, specimen collection cups and labels, requisition forms, gait belt, positioning wedges, facility care plans, clinical skills log
Check: Preceptor verifies each vital-sign reading is within ±4 mm Hg (blood pressure) and ±2 beats/min (pulse) of a simultaneous independent measurement on at least three occasions; specimen is labeled and routed correctly with zero identification errors; restorative care sessions are documented completely. All three skill categories must receive a Satisfactory rating before this lesson block closes.

Practice check8

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

Clinical Skills / Patient Care
1. While taking a resident's blood pressure, you notice the cuff is too large and loosely applied. What is the most likely effect on the reading?
Infection Control / Safety
2. You obtain a urine specimen from a female resident. After sealing the container, you realize the label shows a different resident's date of birth. What should you do?
Safety and Emergency / Restorative Care
3. While assisting a resident with ambulation using a gait belt, the resident says she feels dizzy. What is the correct immediate action?
Clinical Skills / Scope of Practice
4. A resident's pulse oximetry reads 91% on room air, which is below the facility's stated alert threshold. What should the nursing assistant do first?
Restorative Care / Safety
5. During passive range-of-motion to a resident's knee, you feel sudden increased resistance and the resident grimaces. What is the correct action?
Clinical Skills
6. Which of the following is the correct technique for counting respirations in a resident who tends to breathe differently when they know they are being observed?
Communication / Documentation
7. After completing a restorative ambulation session, where must the nursing assistant first report a resident's complaint of right knee pain that began during the walk?
Clinical Skills / Communication
8. A nursing assistant takes a resident's blood pressure and records 162/98 mm Hg. The resident's care-plan baseline is 118/76 mm Hg. What is the correct next step?
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