#1
1. What is cyanosis?
A bluish discoloration of the skin and mucous membranes due to decreased oxygen levels
ExplanationCyanosis is bluish discoloration indicating reduced oxygenation.
#2
2. Which of the following is a common cause of cyanosis?
Low oxygen levels in the blood
ExplanationCyanosis commonly results from low blood oxygen levels.
#3
3. What is the main function of hemoglobin in the blood?
Carry oxygen to the tissues
ExplanationHemoglobin carries oxygen to body tissues.
#4
4. In which part of the respiratory system does oxygen exchange occur?
Alveoli
ExplanationOxygen exchange happens in the alveoli of the lungs.
#5
6. Which medical condition is characterized by central cyanosis?
Congenital heart disease
ExplanationCentral cyanosis is seen in congenital heart diseases.
#6
7. What is the term for a device that measures the oxygen saturation level in the blood?
Pulse oximeter
ExplanationA pulse oximeter measures blood oxygen saturation.
#7
5. What is the term for the process of breathing in oxygen and releasing carbon dioxide?
Respiration
ExplanationRespiration involves oxygen intake and carbon dioxide release.
#8
8. Which organ is primarily responsible for regulating blood oxygen levels?
Lungs
ExplanationThe lungs regulate blood oxygen levels.
#9
9. In hypoxia, what is compromised in the body?
Oxygen supply to tissues
ExplanationHypoxia compromises oxygen delivery to tissues.
#10
10. Which of the following conditions may lead to peripheral cyanosis?
Raynaud's disease
ExplanationPeripheral cyanosis may result from Raynaud's disease.
#11
11. What is the Bohr effect in relation to oxygenation?
A phenomenon where hemoglobin's oxygen-binding affinity is influenced by pH
ExplanationBohr effect: pH affects hemoglobin's oxygen affinity.