HHA vital signs: normal ranges and how to measure them

Temperature, pulse and respiration are named in the federal training rule itself, and a measurement is one of the most common skills on the test. The written questions are mostly about two things: knowing the normal adult ranges cold, and knowing the small technique rules that make a reading wrong, like an oral temperature taken right after coffee or a pulse counted with the thumb.

Questions and answers, explained

All 12 questions above, with the correct answer and why it is correct. Everything here is on hha vital signs: normal ranges and how to measure them.

1. What is the normal resting pulse range for an adult?

   • A40 to 60 beats per minute
   • B100 to 140 beats per minute
   • C60 to 100 beats per minuteCorrect
   • D12 to 20 beats per minute

   Why: A normal adult resting pulse is 60 to 100 beats per minute. Below 60 is bradycardia and above 100 is tachycardia; either should be reported to the nurse unless the care plan gives the client a different expected range. 12 to 20 is the normal adult respiration rate, a common mix-up.

   Reference 42 CFR 484.80(b)(3)(iii); AHA normal heart rate

2. What is the normal respiratory rate for a resting adult?

   • A12 to 20 breaths per minuteCorrect
   • B4 to 8 breaths per minute
   • C30 to 40 breaths per minute
   • D60 to 100 breaths per minute

   Why: A resting adult normally breathes 12 to 20 times a minute. One breath is one rise and one fall of the chest. Rates outside this range, noisy breathing, or visible struggle to breathe are reported to the nurse.

   Reference 42 CFR 484.80(b)(3)(iii)

3. A client just finished a cup of hot coffee. How long should the aide wait before taking an oral temperature?

   • ANo wait is needed with a digital thermometer
   • BAbout 15 minutesCorrect
   • CAbout 2 minutes, just until the cup is put away
   • DAt least 2 hours, until the next meal

   Why: Eating, drinking, chewing gum or smoking changes mouth temperature, so wait about 15 minutes before an oral reading. A digital thermometer measures faster but cannot correct for a warm or cold mouth.

   Reference NNAAP measurement skills; nursing assistant standard practice

4. Which client should NOT have an oral temperature taken?

   • AA client who is alert, sitting up and breathing comfortably
   • BA client who ate lunch an hour ago
   • CA client who wears glasses to read the paper
   • DA client who is confused or has a seizure historyCorrect

   Why: Oral temperatures are avoided for clients who are confused, unconscious, have a seizure history, are receiving oxygen by mask, breathe through the mouth, or recently had mouth surgery, because they may bite the thermometer or cannot keep the mouth closed. An hour after lunch is plenty of time.

   Reference Nursing assistant standard practice

5. Compared with an oral temperature, an axillary (underarm) temperature is usually:

   • AAbout 1°F lowerCorrect
   • BAbout 1°F higher
   • CExactly the same every time it is taken
   • DAbout 5°F lower than the oral reading

   Why: Axillary readings run about 1°F (0.5°C) lower than oral readings and are the least accurate method, while rectal readings run about 1°F higher. Always record which method was used so the nurse can interpret the number.

   Reference Nursing assistant standard practice

6. Why should the aide NOT use the thumb to feel a client's radial pulse?

   • AThe thumb presses too lightly to feel anything
   • BUsing the thumb spreads germs more than the fingers
   • CThe thumb has its own pulse that can be miscountedCorrect
   • DThe radial artery cannot be reached with the thumb

   Why: The thumb has a noticeable pulse of its own, so the aide could count their own heartbeat instead of the client's. Use the pads of the first two or three fingers on the thumb side of the client's inner wrist.

   Reference NNAAP measurement skills

7. Why does the aide count respirations right after the pulse, with the fingers still on the wrist?

   • APulse and breathing must be counted at the same moment
   • BSo the client does not notice and change their breathingCorrect
   • CKeeping contact warms the wrist for a better reading
   • DIt is faster than counting each sign separately

   Why: People unconsciously change their breathing when they know it is being watched. Keeping the fingers on the wrist as if still taking the pulse lets the aide count natural breaths for a full minute.

   Reference NNAAP measurement skills

8. The aide notices the client's pulse is irregular. How long should the aide count it?

   • A15 seconds, then multiply by 4
   • B30 seconds, then multiply by 2
   • CJust until five beats have been felt
   • DOne full minuteCorrect

   Why: An irregular pulse must be counted for a full 60 seconds, because short counts multiplied up can be badly wrong when beats are uneven. Note that it was irregular and report it to the nurse.

   Reference NNAAP measurement skills

9. On which arm should blood pressure NOT be taken?

   • AThe arm the client usually writes with
   • BAn arm with a dialysis fistula or on the side of a mastectomyCorrect
   • CWhichever arm is closest to where the aide is standing at the time
   • DThe left arm, in every client

   Why: Squeezing an arm with a dialysis access (fistula or graft), an IV, a cast, an injury, or on the side of a mastectomy with lymph node removal can damage it or cause swelling. The care plan should say which arm to use; if in doubt, ask the nurse.

   Reference Nursing assistant standard practice

10. Under current American Heart Association categories, a reading of 118/76 mmHg is:

    • AStage 1 high blood pressure
    • BElevated blood pressure
    • CNormal blood pressureCorrect
    • DA hypertensive crisis

    Why: The AHA defines normal as a systolic below 120 and a diastolic below 80. Elevated is 120-129 with a diastolic below 80; stage 1 is 130-139 or 80-89. A reading above 180 and/or 120 is a crisis that needs immediate help.

    Reference AHA/ACC blood pressure categories (2017)

11. When measuring blood pressure, how should the client's arm be positioned?

    • ASupported at heart level, palm upCorrect
    • BRaised above the head to slow the blood
    • CHanging straight down at the client's side
    • DBent tightly across the client's chest

    Why: The arm should be supported at the level of the heart with the palm up. An arm hanging below the heart reads falsely high, and an arm raised above it reads falsely low. The cuff goes on bare skin about an inch above the elbow crease.

    Reference AHA blood pressure measurement guidance

12. Which oral temperature is generally considered a fever that should be reported?

    • A97.8°F (36.6°C)
    • B98.6°F (37.0°C)
    • C99.0°F (37.2°C)
    • D100.4°F (38.0°C)Correct

    Why: A temperature of 100.4°F (38°C) or higher is commonly used as the definition of fever. Older adults may have serious infections with only a small rise, so any change from the client's usual temperature, or new chills or confusion, is worth reporting.

    Reference CDC fever definition (100.4°F / 38°C)

Drill the whole domain

• Observation, Vital Signs and Reporting (10%)

Other topics

• Perineal and catheter care: the steps HHAs get tested on
• Transfers, gait belts, canes and walkers for HHAs
• Pressure injuries and skin tears: what HHAs check and report
• Food safety for home health aides: the temperatures to know
• HHA scope of practice: what a home health aide can and cannot do
• Dementia care for home health aides: communication that works
• Hand hygiene, gloves and PPE order for home health aides
• Fire, oxygen and electrical safety in a client's home
• Positioning and range of motion: Fowler's, Sims' and ROM terms
• Client rights, abuse and neglect: what HHAs must report
• Emergencies for home health aides: choking, stroke, seizures
• Assisting with medications: an HHA's role and limits

See all topics · Study Guides · Full practice exam