Measurements: Intake, Output, Vitals, and Recording

Pulse And Respirations (Counted For A Full Minute)

Measurements are where skills testing and real care overlap most directly: a number only helps the nurse if it was measured correctly, recorded with the right unit, and tied to the correct resident. NNAAP-aligned evaluations require every candidate to perform at least one measurement skill — pulse, respirations, blood pressure, weight, or output — so the technique and the tolerances must be exact.

For the radial pulse, place your index and middle fingertips (never your thumb, which has its own pulse) on the thumb side of the inner wrist, just below the wrist crease. Press gently — pressing too hard obliterates the pulse. Count for one full minute (60 seconds), not 15 seconds times four. Your recorded rate must fall within plus or minus 4 beats per minute of the evaluator's count. A normal adult resting pulse is 60 to 100 beats per minute.

Respirations are usually counted immediately after, often while you appear to still be taking the pulse, because telling a resident you are counting their breathing makes them change it. Count one full minute; one respiration is one full inhale plus one exhale (the chest rising and falling once). Do not announce the count. Your recorded rate must be within plus or minus 2 breaths of the evaluator. A normal adult rate is 12 to 20 breaths per minute.

Blood Pressure, Temperature, And Weight

Blood pressure is the most failed measurement skill, so its steps are precise. Position the arm supported at heart level, palm up. Wrap the cuff so its lower edge sits about one inch above the antecubital (elbow) crease with the artery marker over the brachial artery; the cuff should be snug with about two fingers of room. Place the stethoscope over the brachial pulse you palpated in the bend of the elbow. Inflate until the gauge reads roughly 160-180 mmHg (or about 30 mmHg past where the pulse disappears), then deflate slowly at about 2-3 mmHg per second.

The first clear tapping sound is the systolic; the last sound you hear is the diastolic. Record as systolic/diastolic (for example, 128/76). Your reading must be within plus or minus 8 mmHg of the evaluator's for both numbers.

Temperature is not on the core NNAAP 22-23 skill list, but some Washington practice settings include it. With a digital oral thermometer, apply a disposable probe cover, place the probe under the tongue toward the back and slightly to one side, and read at the beep. Oral baseline is about 98.6 F (37 C); report a temperature roughly a degree or more above baseline as a possible fever.

For weight of an ambulatory client, protect against falls first: nonskid footwear, balance the scale at zero before the resident steps on, and have them stand still. Record in the unit the form directs (pounds or kilograms) and never leave the resident unsupported on the scale.

Intake, Output, And Honest Recording

For urinary output, put on gloves, then pour the urine from the bedpan or container into a graduate (measuring container) without splashing. Set the graduate on a flat, level surface and read the volume at eye level — reading from above or below distorts the number. If the level falls between two markings, round up to the nearest 25 mL (cc). The recorded value should be within plus or minus 25 mL of the evaluator. Then empty, rinse, and store the equipment, remove gloves, wash hands, and record.

For intake and output (I&O), know what counts: oral fluids, IV fluids, and tube feedings are intake; urine, emesis, and drainage are output. Many semi-solids at room temperature (gelatin, ice cream, ice chips counted as about half their volume) count as fluid intake.

Recording is not clerical trivia. The wrong unit, wrong resident, wrong line, or wrong time makes correct technique useless. Never invent a value, never change a value to look normal, and never omit the unit. If a reading is uncertain, recheck if allowed rather than guessing. If a value is abnormal or changed from the resident's baseline, report it to the nurse rather than only writing it down and walking away — measurement is a safety task, not a formality.

Which Arm Or Site To Avoid, And When To Report

Knowing where NOT to measure is itself tested. Avoid a blood-pressure cuff on an arm with an IV line, a dialysis access (fistula or graft), a cast, a wound, stroke paralysis, or on the side of a mastectomy with lymph node removal — use the other arm and report uncertainty. For temperature, do not take an oral reading right after hot or cold fluids or if the resident cannot keep the mouth closed; use an alternate site per direction. For weight, weigh at the same time of day, on the same scale, with similar clothing, so comparisons mean something — a sudden gain can signal fluid retention the nurse must know about.

Build a mental list of values to report promptly: a pulse below 60 or above 100, respirations below 12 or above 20, a blood pressure far from the resident's usual reading, a temperature about a degree above baseline, and output that is very low, bloody, or foul-smelling. The nursing assistant does not diagnose, but recognizing and reporting an out-of-range value quickly is a core safety contribution. Practice each measurement until both the technique and the tolerance are automatic — under observation, shaky technique produces a value outside the allowed range and fails the skill even when every other step was correct.