pulse oximeter
Fingertip oxygen reader
A pulse oximeter is a small medical device that clips onto a fingertip to measure blood oxygen levels and heart rate.
It works by shining light through the skin and detecting how much oxygen the hemoglobin is carrying.
Common in hospitals and homes, especially for monitoring respiratory conditions: Her pulse oximeter showed 98% oxygen saturation.
Terminal phalanx pad
- clip-onGrips to attach
- sensorInput-detecting device
- displayPresentation for viewing
- readoutDisplayed recorded data
waveform · photodetector · LEDs · transmittance · absorption · wavelengths · probe · earlobe
Peripheral oxygen saturation level
- hemoglobinErythrocyte's oxygen-binding protein
- perfusionFluid delivery to tissue
- heart rateCardiac contractions per minute
- waveformGraphed oscillation pattern
spectrophotometry · arterial blood · oxygenation · desaturation · accuracy · calibration · cold fingers · skin pigmentation
Erythrocyte's oxygen-binding protein
- oxyhemoglobinOxygen-carrying blood compound
- deoxyhemoglobinOxygen-free blood protein
- arterial bloodOxygenated cardiovascular fluid
- capillariesTiniest blood vessels
circulation · perfusion · respiration · oxygenation · lungs · alveoli · gas exchange · vasodilation
Low blood oxygen levels
- hypoxiaInsufficient tissue oxygenation
- respiratory failureInadequate lung gas exchange
- intensive careSpecialized treatment for severe illness
- anesthesiaInduced loss of feeling
surgery · recovery room · emergency · triage · COVID-19 · pneumonia · COPD · asthma
fingertip
Terminal phalanx pad
readout · waveform · photodetector · LEDs · transmittance · absorption · wavelengths · probe · earlobe · portable
SpO2
Peripheral oxygen saturation level
- hemoglobinErythrocyte's oxygen-binding protein
- perfusionFluid delivery to tissue
- heart rateCardiac contractions per minute
waveform · spectrophotometry · arterial blood · oxygenation · desaturation · accuracy · calibration · cold fingers · skin pigmentation
hemoglobin
Erythrocyte's oxygen-binding protein
- oxyhemoglobinOxygen-carrying blood compound
- deoxyhemoglobinOxygen-free blood protein
- arterial bloodOxygenated cardiovascular fluid
capillaries · circulation · perfusion · respiration · oxygenation · lungs · alveoli · gas exchange · vasodilation · vasoconstriction
hypoxemia
Low blood oxygen levels
- hypoxiaInsufficient tissue oxygenation
- respiratory failureInadequate lung gas exchange
- intensive careSpecialized treatment for severe illness
anesthesia · surgery · recovery room · emergency · triage · COVID-19 · pneumonia · COPD · asthma · sleep apnea
- Heart-Lung Testscardiac stress test, echocardiogram, EKG, ECG, stress test
- medical equipmentstethoscope, AED, syringe, hospital bed, surgical table
- clinicexam table, examination table, stethoscope, blood pressure cuff, otoscope
- first aidbandage, bandages, first aid kit, tourniquet, gauze pads
- health equipmentstethoscope, bandage, gauze, syringe, needle
- health suppliesbandage, pharmacy, bandages, drugstore, gauze
pulse oximeterthermometer
Heat-measuring instrument
sphygmomanometer · electrocardiogram · glucometer · ECG · EKG
meter, pulse, impulse, oxygen, impulsive, repulsive, repulse, pulsate, compulsive