Snellen chart
Medical term Patient Intake and Vitals
A chart of letters in decreasing size, read from 20 feet, used to test distance visual acuity.
Sources
Related terms
- visual acuitySharpness of vision.
- pulse oximeterA device that measures the oxygen saturation of the blood.
- pulse pressureThe difference between the systolic and diastolic blood pressures.
- radial pulseThe pulse felt at the wrist on the thumb side; the most common site for routine pulse checks.
- respirationOne breath: an inhalation and an exhalation; respirations are counted per minute.
- sphygmomanometerA blood pressure cuff with a gauge used to measure blood pressure.
- stethoscopeAn instrument that amplifies body sounds such as the heartbeat, lungs and bowel.
- subjective dataInformation the patient or family reports, such as symptoms and feelings.
- systolic pressureThe top blood pressure number: the highest pressure, during ventricular contraction.