All of the following cause decrease in reading in values of pulse oximeter except
Correct Answer: CarboxyHb
Description: Pulse oximetery - Measure oxygen saturation of aerial blood (SpO2) - 2 principle- Law of plethysmography -Measures the pulsatile flow of blood in capillary Law of oximetery / BEER LAMBE'S Law Inaccuracies in pulse oximetery reading - Hypotension - Hypothermia - Other hemoglobins (Sulph hemoglobin) - Dyes or pigments - Dark skin color - Nail polish (Blue) - Jaundice and Anemia does not affect the value of pulse oximetry Poable pulse oximeter with finger probe. Pulse oximetery = HbO2 /(HbO2 +HbH ) CO oximetery = HbO2 / (HbO2 +HbH + Sulph Hb + Meth Hb) Reflectance oximeter - for forehead attachment Eg. Used in amputated patients HbO2 - Oxy Hb HbH - Deoxy Hb
Category:
Anaesthesia
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now