Knowledge Base
- Physiology of blood pressure
- LV stroke volume
- Distensibility of vessels
- Peripheral vascular resistance
- Blood volume
- Korotkoff sounds
- Initial appearance of sounds marks systolic pressure
- Muffling and disappearance of sounds marks diastolic pressure
- Auscultatory gap
- Cuff size requirements
- Cuff width 40% of the circumference of the upper arm.
- Length of the bladder 80% of the circumference of the upper arm.
- Longer and larger cuff for legs
- Cuffs too short or too narrow may give false high reading
- Diseases altering blood pressure
Ref:
- Bates, A Guide to Physical Exam.