A medical assistant is taking vital signs on an adult patient who reports light-headedness on standing. The patient's resting pulse is 58 bpm, respirations 16 per minute, blood pressure 102/64 mmHg, and SpO2 98 percent on room air. The patient also mentions taking a beta-blocker for hypertension. Considering the role of the cardiovascular and autonomic nervous systems, what is the BEST next action for the medical assistant?
- ADocument the findings as within normal limits, since the pulse, respirations, and SpO2 all fall in the adult reference ranges for a resting patient.
- BRecord the vital signs, flag the symptomatic bradycardia and the beta-blocker therapy in the chart, and notify the provider before the patient leaves the room. Correct
- CIndependently advise the patient to skip the next beta-blocker dose at home and recheck the pulse before bed to confirm whether the medication is the cause.
- DReposition the patient supine, administer 2 litres per minute of oxygen by nasal cannula, and recheck the blood pressure in five minutes to address the symptoms.
Why A is wrong: Tempting because 58 bpm sits just under 60 bpm and the other vitals are normal, but the patient is symptomatic with light-headedness and on a rate-controlling drug, so the finding cannot be dismissed as routine; the medical assistant should escalate, not merely document.
Why B is correct: A pulse of 58 bpm is below the adult reference range of 60 to 100 bpm and the patient is symptomatic, so the medical assistant accurately documents the cardiovascular findings, links them to the rate-slowing medication, and escalates to the provider while remaining within scope of practice.
Why C is wrong: Tempting because the beta-blocker is the obvious mechanistic suspect for the slow pulse, but adjusting or withholding a prescribed medication is outside the medical assistant's scope and could destabilise the patient's blood pressure control.
Why D is wrong: Tempting because positional change can help orthostatic symptoms, but starting oxygen therapy is a treatment that requires a provider order, and the SpO2 of 98 percent shows no hypoxaemia, so this exceeds scope and is clinically unjustified.