9.2 Radial Pulse and Respirations (Skills 6–7)

Key Takeaways

  • Skill 6: explain, place fingertips on the thumb side of the wrist, count one full minute, leave the signaling device in reach, wash before recording; critical element is a recorded rate within plus or minus 4 beats of the evaluator.
  • Skill 7: explain for testing purposes, count respirations one full minute, signaling device in reach, wash before recording; critical element is plus or minus 2 breaths of the evaluator.
  • Colorado test day requires an analog watch with a sweeping second hand — not a digital watch or a smartwatch.
  • An irregular pulse is still counted for a full minute and then reported to the licensed nurse.
  • Radial pulse and respirations are measurement skills; one measurement skill is always among the four random skills on the Colorado Skills Evaluation.
Last updated: August 2026

9.2 Radial Pulse and Respirations (Skills 6–7)

Quick Answer: Colorado Skill 6 (Counts and Records Radial Pulse): explain the procedure, place fingertips on the thumb side of the wrist, count one full minute, leave the signaling device in reach, wash before recording, and hit the critical element — record within plus or minus 4 beats of the evaluator. Skill 7 (Counts and Records Respirations): explain for testing purposes, count one full minute, signaling device, wash before recording, critical element plus or minus 2 breaths. Bring an analog watch with a sweeping second hand — not a digital watch or smartwatch. An irregular pulse is still counted for a full minute and then reported. Either skill may be the required measurement skill.

Why Skills 6 and 7 matter

The Colorado Skills Evaluation assigns five skills in 30 minutes. Hand hygiene is always assigned. One of the other four is always a measurement skill. The Colorado measurement list is electronic blood pressure, weight, urinary output, radial pulse, and respirations. If you draw Skill 6 or Skill 7, that may be your measurement skill. Miss the critical element and that skill is not satisfactory — which fails the skills exam, because you must pass all five.

Written I.B.4 items ask the same facts without a mannequin: Where is the radial pulse? How long do you count? What do you do with an irregular beat? Why do you not coach the client to breathe on cue? Test-day equipment is not trivia. The Colorado handbook requires an analog watch with a sweeping second hand. A smartwatch will not save the critical element.

/practice/co-cnaPractice questions with detailed explanations

Skill 6 — Counts and Records Radial Pulse

Follow the Colorado handbook steps in order. Do not invent a 15-second shortcut on test day.

  1. Explain the procedure, speaking clearly, slowly, and directly, and keep face-to-face contact whenever possible.
  2. Place fingertips on the thumb side of the client's wrist to locate the radial pulse.
  3. Count beats for one full minute.
  4. Leave the signaling device (call light) within reach.
  5. Before recording, wash your hands.
  6. Critical element: Record the pulse rate within plus or minus 4 beats of the evaluator's reading.

Radial technique that actually scores

  • Use the pads of two or three fingers, not the thumb. Your thumb has its own pulse. Counting your thumb is how candidates invent a number the evaluator will not match.
  • Thumb side of the wrist, in the groove beside the tendon, is the radial artery. That is not the inner elbow (brachial) and not the neck (carotid). Skill 6 is radial. Do not upgrade to a carotid count unless the nurse directs a different site after you report that you cannot feel a radial pulse.
  • Count one full minute. The card does not say 30 seconds times two. The card does not say 15 seconds times four. Those classroom shortcuts create a ±4 miss when a beat falls on a boundary.
  • Look at your analog second hand, start at a landmark (12 or 3), and count for a full 60 seconds.
  • If the pulse is irregular, you still count the full minute. Then you report the irregularity to the licensed nurse. You do not average. You do not stop at 20 seconds because it is all over the place.
  • Strength and rhythm are observations you may report: weak, bounding, regular, irregular. The number you write is the count.

Wash before you pick up the recording sheet or tablet. The handbook order is count, call light, wash, record. Recording with dirty hands after touching the wrist is a missed step even if your number is perfect.

Skill 7 — Counts and Records Respirations

Handbook steps:

  1. Explain the procedure (for testing purposes), speaking clearly, slowly, and directly, maintaining face-to-face contact whenever possible.
  2. Count respirations for one full minute.
  3. Signaling device is within reach.
  4. Before recording, wash your hands.
  5. Critical element: Record the respiration rate within plus or minus 2 breaths of the evaluator's reading.

The do-not-tell-them rule versus the test card

People change their breathing when they know you are counting. In clinical practice you often count respirations while you still have your fingers on the wrist, so the person thinks you are still on pulse. On the Credentia card you still explain the procedure for testing purposes. That is the handbook wording. You do not skip the explanation on test day because a textbook said to stay silent. You also do not coach the client: take big breaths so I can count. You explain, then you count the pattern you see — chest or abdomen rising and falling — for one full minute.

One rise and fall is one respiration. Count for 60 seconds. The critical element is only ±2. A 15-second count that you multiply by four can miss by four breaths and fail the skill.

Report labored breathing, noisy breathing, use of neck muscles, bluish lips, or a sudden change. Those are observations for the licensed nurse. The number you record is still the count.

Analog watch — test-day equipment

Colorado test-day materials include an analog watch with a sweeping second hand. A digital watch or smartwatch is not the listed tool. If you cannot see a moving second hand, you cannot prove a full-minute count.

  • Wear it where you can see it without turning your back on the client.
  • Do not rely on a wall clock you cannot read from the bedside.
  • Do not start a phone timer. Phones are not test-day equipment.

One of these may be the measurement skill

Remember the skills-set math:

  • Five skills, 30 minutes, 5-minute warning at 25 minutes.
  • Hand hygiene always.
  • One measurement skill among the other four.
  • Measurement options: electronic blood pressure (Skill 12), weight (Skill 14), urinary output (Skill 13), radial pulse (Skill 6), respirations (Skill 7).

If Skill 6 or Skill 7 is in your set, treat that count as the measurement you cannot miss. You may correct a step before you start the next skill by telling the evaluator which steps you will correct. You cannot go back after the next skill starts. If you recorded 72 and then realize you counted 30 seconds, say so before you begin the next skill and recount if the evaluator allows the correction on that skill. Chapter 17 covers the correction rule in full.

Pulse and respiration table

ItemSkill 6 — Radial pulseSkill 7 — Respirations
OpeningExplain; face-to-faceExplain for testing purposes; face-to-face
Site / what you countFingertips, thumb side of wristChest or abdomen rise and fall
TimeOne full minuteOne full minute
After the countSignaling device in reachSignaling device in reach
Before the number is writtenWash handsWash hands
Critical elementRecord within ±4 beats of the evaluatorRecord within ±2 breaths of the evaluator
Clinical extra (not a substitute for the count)Report irregular, weak, or bounding pulseReport labored, noisy, or sudden change
Test-day toolAnalog watch, sweeping second handSame watch

Colorado scenario

You are in a Credentia Colorado skills room in Aurora. The evaluator assigns Hand Hygiene, Skill 6, Skill 7, a transfer, and a bed bath. Skill 6 is your measurement skill. You explain to the candidate volunteer that you will count the pulse. You place your thumb on the wrist, count for 15 seconds, multiply by four, write 80, and reach for the recording sheet with unwashed hands. The volunteer then starts talking, and you announce that you will watch every breath for a minute and that the person should try to breathe normally. You count for 20 seconds and multiply.

That sequence fails more than one way. Skill 6 requires fingertips on the thumb side, a full minute, wash before recording, and a number within ±4 of the evaluator — who counted the real radial pulse for the same minute. Your thumb-and-multiply number will not match. Skill 7 requires a full-minute count and a number within ±2. Coaching the client to perform breathing changes the pattern. You still explain for testing, but you do not turn the count into a breathing lesson.

Do this instead: fingertips on the thumb-side radial pulse, analog second hand, 60 seconds, call light in reach, wash, record. Keep your fingers in place or rest your hand lightly and count respirations for another full minute without turning it into a coaching session. Wash again before you record Skill 7. If the pulse felt irregular, your recorded number is still the full-minute count, and after the skill you report the irregularity — on the unit, to the licensed nurse.

Exam traps

  • Counting 15 or 30 seconds and multiplying on test day.
  • Using the thumb on the wrist.
  • Recording before washing.
  • Forgetting the call light.
  • Smartwatch or digital watch instead of an analog sweeping second hand.
  • Telling the client to take deep breaths so you can count.
  • Skipping the Skill 7 explanation because a textbook said never to tell the client.
  • Stopping an irregular pulse at 20 seconds.
  • Treating ±4 (pulse) and ±2 (respirations) as interchangeable.
Colorado Skills 6 and 7 critical-element tolerances
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Skill 6 and Skill 7 count-and-record sequence
Test Your Knowledge

Which action matches Credentia Colorado Skill 6, Counts and Records Radial Pulse?

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Test Your Knowledge

What must you bring for Skills 6 and 7, and how long do you count respirations on the Colorado skills exam?

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D
Test Your Knowledge

During Skill 6 the client's radial pulse feels irregular. What should the CNA do?

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D