PATHOLOGY

PATHOLOGY MCQ

RESPIRATORY SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
An increase in CO2 causes a decrease in blood pH.
A
True
B
False
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -In the presence of an excess of CO2, there will be a shift to carbonic acid, ultimately causing the generation of hydrogen cations and bicarbonate anions. It is with this increased production of hydrogen ions that bodily pH will begin to decrease, causing acidosis from acidemia.

Detailed explanation-2: -Because of human-driven increased levels of carbon dioxide in the atmosphere, there is more CO2 dissolving into the ocean. The ocean’s average pH is now around 8.1, which is basic (or alkaline), but as the ocean continues to absorb more CO2, the pH decreases and the ocean becomes more acidic.

Detailed explanation-3: -CO2 is an acid managed by the lungs. As PaCO2 increases, the blood becomes more acidic and the pH decreases. As PaCO2 decreases, the blood becomes less acidic and the pH increases.

There is 1 question to complete.