#1
What does a pulse oximeter measure?
Oxygen saturation
ExplanationPulse oximeters measure the oxygen saturation levels in the blood.
#2
What is the typical range for normal oxygen saturation in adults?
90-95%
ExplanationNormal oxygen saturation in adults typically falls between 90% and 95%.
#3
What does the term 'SpO2' stand for in pulse oximetry?
Saturation of Peripheral Oxygen
ExplanationIn pulse oximetry, 'SpO2' stands for Saturation of Peripheral Oxygen.
#4
What is the common range for a normal resting heart rate in adults?
60-100 beats per minute
ExplanationA normal resting heart rate in adults typically ranges between 60 to 100 beats per minute.
#5
What is the recommended site for placing a pulse oximeter sensor in newborns?
Toe
ExplanationThe recommended site for placing a pulse oximeter sensor in newborns is the toe.
#6
Which color is typically associated with a healthy pulse oximeter reading?
Green
ExplanationA healthy pulse oximeter reading is typically associated with the color green.
#7
What does the term 'plethysmograph' refer to in the context of pulse oximetry?
Blood flow waveform
ExplanationIn pulse oximetry, 'plethysmograph' refers to the graphical representation of blood flow.
#8
What is the typical location on the body where a pulse oximeter is placed for accurate readings?
Finger
ExplanationFor accurate readings, a pulse oximeter is typically placed on the finger.
#9
What is the primary function of a pulse oximeter alarm feature?
Alert for abnormal oxygen levels
ExplanationThe primary function of a pulse oximeter alarm is to alert for abnormal oxygen levels.
#10
What is the purpose of a perfusion index in pulse oximetry?
Assess blood circulation at the measurement site
ExplanationThe perfusion index in pulse oximetry assesses blood circulation at the measurement site.
#11
In which medical conditions is continuous pulse oximetry monitoring often used?
Asthma
ExplanationContinuous pulse oximetry monitoring is often used in conditions like asthma.
#12
Which factor can potentially affect the accuracy of pulse oximetry readings?
All of the above
ExplanationVarious factors including motion, poor perfusion, and ambient light can affect pulse oximetry accuracy.
#13
What is the primary wavelength range used by pulse oximeters to measure oxygen saturation?
Red and infrared
ExplanationPulse oximeters primarily use red and infrared wavelengths to measure oxygen saturation.
#14
Which of the following conditions may lead to inaccurate pulse oximetry readings?
Both a and b
ExplanationFactors such as motion artifacts and poor perfusion can lead to inaccurate pulse oximetry readings.
#15
Which population group is particularly susceptible to changes in oxygen saturation during sleep?
Children
ExplanationChildren are particularly susceptible to changes in oxygen saturation during sleep.