BLOOD AND OXIMETRY Flashcards
WHY DOES THE INFLATABLE CUFF NEED TO BE AT HEART LEVEL DURING MEASUREMENT?
to eliminate the influence of the hydrostatic pressure
WHAT IS THE AVERAGE BLOOD PRESSURE OF A HEALTHY RELAXED PATIENT?
120/80 mmHg
HOW MANY PASCALS DOES 1mmHg CORRESPOND TO?
13.3kPa
HOW CAN BLOOD PRESSURE BE MEASURED?
ergometry
direct method
auscalation
oscillometry
riva rocci method
HOW DO YOU MEASURE BLOODSTREAM?
doppler
CAN DIASTOLIC BLOOD PRESSURE BE READ DURING AUSCALATION METHOD?
CAN DIASTOLIC BLOOD PRESSURE BE READ DURING AUSCALATION METHOD?
no
WHEN CAN THE DIASTOLIC PRESSURE BE NOTED?
when the sounds disappear
WHAT IS USED AS A MEASURING DEVICE DURING THE AUSCALATION METHOD?
stetascope held over the brachial artery
SYSTOLIC PRESSURE
pressure when ventricles contract and push blood out
DIASTOLIC PRESSURE
pressure when ventricles are relaxed and blood comes back in
WHAT IS OXYGEN SATURATION LEVELS?
the percentage of total hemoglobin converted to oxyhemoglobin (SO2 = HBO2 / (all other kinds of hemoglobin) )
WHAT ARE NORMAL SpO2 LEVELS?
95-98%
WHAT MEASURES SpO2 LEVELS?
LEDS (red and infrared)
Photodiode