6.3 Manual Blood Pressure: Pennsylvania Skill Sequence & Safe Technique

What the numbers mean

Blood pressure is recorded as systolic over diastolic pressure in millimeters of mercury (mm Hg). Systolic is the pressure associated with ventricular contraction; diastolic is the pressure while the heart relaxes between beats. A nurse aide collects and records the measurement and reports symptoms or unexpected results; the aide does not diagnose hypertension, change medication, or decide treatment.

Report promptly according to the care plan when a reading is unexpectedly high or low, differs markedly from the resident’s baseline, or accompanies chest pain, shortness of breath, severe headache, weakness, confusion, fainting, or other acute change. If the reading seems inconsistent and the resident is stable, check technique and notify the nurse about the result and any repeat requested by policy. Do not hide or “correct” a value to make it look normal.

Equipment and error prevention

Use the cuff size and site directed by the care plan and facility policy. A cuff that is too small tends to produce a falsely high value; one that is too large can produce a falsely low value. Clothing under a cuff, an unsupported arm, talking, recent exertion, crossed legs, a full bladder, and rapid deflation can alter readings.

Place the upper arm bare and supported, with palm up and the cuff at approximately heart level. Do not choose an arm with an IV, dialysis access, injury, or another charted restriction without direction. Mastectomy-related precautions are individualized; review the care plan and ask the nurse rather than declaring an arm permanently unusable on your own.

An aneroid gauge should be at eye level and calibrated under facility procedure. Point stethoscope earpieces forward into the ear canals. Place the bell or diaphragm over the brachial artery without rubbing it against the cuff. Release pressure slowly enough to identify the first and last Korotkoff sounds.

Exact Pennsylvania Skills Evaluation sequence

Pennsylvania Skill 23 is Measures and Records Manual Blood Pressure. Skill 12, Electronic Blood Pressure, is marked “NOT TESTED IN PENNSYLVANIA.” Follow the state list rather than a generic textbook procedure:

1. Explain the procedure clearly and maintain appropriate face-to-face communication.
2. Before use, wipe the stethoscope earpieces and bell/diaphragm with alcohol.
3. Position the client’s arm palm up with the upper arm exposed.
4. Palpate the brachial artery at the inner bend of the elbow.
5. Place the cuff snugly on the upper arm with its sensor/arrow over the brachial site.
6. Put the earpieces in the ears and place the bell/diaphragm over the brachial artery.
7. Inflate the cuff to between 160 and 180 mm Hg.
8. Begin slow deflation. If a beat is heard immediately when deflation starts, completely deflate the cuff, allow the arm to recover, and reinflate to no more than 200 mm Hg.
9. During slow deflation, note the first sound as systolic and the last sound as diastolic. If rounding is necessary, round up to the nearest 2 mm Hg.
10. Remove the cuff, place the signaling device within reach, wash hands, and then record both values.
11. Each value must be within ±8 mm Hg of the evaluator’s reading.

For example, a pointer between 126 and 128 is recorded as 128 because the PA skill says round up to the nearest 2. Do not round to an odd number and do not reverse systolic and diastolic values.

Exam procedure versus workplace procedure

Some clinical textbooks teach a preliminary palpatory estimate followed by inflation 20–30 mm Hg above disappearance of the radial pulse. That can be part of a facility’s clinical procedure, but it is not the sequence currently printed for Pennsylvania’s manual-BP skill. During the PA Skills Evaluation, use the published 160–180 rule and its conditional reinflation rule. In employment, use the employer’s validated technique and equipment instructions.

Electronic monitors can fail because of movement, arrhythmia, poor cuff placement, or low perfusion. Although electronic blood pressure is excluded from the Pennsylvania hands-on testing pool, aides may use devices at work when trained and assigned. Report unexpected results rather than diagnosing from one reading.

Orthostatic symptoms

A resident who becomes dizzy, pale, weak, or faint during position change needs immediate fall protection. Assist the resident to a safe seated or lying position, use the call system, and notify the nurse. Do not continue walking to “work through” symptoms. Orthostatic assessment may require timed supine and standing measurements by appropriately trained staff under facility policy; one casual standing value is not enough for the aide to diagnose orthostatic hypotension.