Part 1 acid base disorder Flashcards
Lungs need to breathe out CO2 but also need to breathe in oxygen
Lungs oxygenate the blood
You can calculate the amount of O2 carbon dioxide partial pressure in the arterial blood
We want good hemoglobin saturation
Hgb saturation remains above 90% as long as PaO2 IS ABOVE _____mmHg
above 60mmHg
Kidney handles bicarbonate and bicarbonate is a basic substance
If pt PaCO2 is 80 pt will go into acidosis so pH is low! How will the body turn it into alkalosis state? It will depend on the kidney
Low pH will lead to more retention of the bicarbonate so kidney will retain more bicarbonate
Increase pH will lead to kidney _______the bicarbonate
excrete
Kidney compensation takes time so it begins 6 to 12 hours
Full compensation takes a couple of days
Normal bicarbonate value is what?
22-26
If we get a bicarbonate of 40 will body be in acidosis or alkalosis?
alkalosis
How will body bring alkalosis back to normal who is going to do the job?
the lungs by retaining more CO2
If pt has high levels of bicarbonate patient will go into alkalosis so this triggers the lungs to do a slow breathing retaining more of the CO2 so bringing the pH down
In order to exactly tell whether patient is in acidosis or alkalosis state we need to measure or obtain the arterial blood gas readings called _________
ABGs
ABGs is taken from arterial blood vessel not the vein
ABGs consist of pH/PaCO2/paO2/HCO3-
You can do direct measurement of pH, ____, _______
PaCO2 and PaO2
_________is calculated from pH and PaCO2
HCO3- (bicarbonate)
ABGs are done to test how well your _______are able to move oxygen into the blood and remove carbon dioxide from the blood.
lungs
