Cyanosis or bluish coloration of skin and mucus membrane depends upon______________?
Correct answer: B. The absolute amount of reduced hemoglobin
- A. The relative proportion of reduced and oxygenated hemoglobin
- B. The absolute amount of reduced hemoglobin
- C. Thickness of the skin
- D. Fragility of capillaries
Explanation
Cyanosis becomes clinically apparent when the absolute amount of reduced haemoglobin rises to roughly 5 g/dL, rather than simply from a particular proportion of total haemoglobin. This is why cyanosis may be difficult to see in severe anaemia.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Respiratory Physiology
46 free Respiratory Physiology MCQs from Physiology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physiology questions like this
Physiology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Respiratory Physiology questions
Limitation of inspiration by vagal lung inflation signals is called the______________?
Smoking causes_____________?
Non- respiratory function of the lung is_________________?
During the initial part of inspiration, which of the following does not occur ?
The best stimulator of respiratory center is____________?
Oxygen dissociation curve shifts to the right by all of the following except_____________?