· What is the primary acid-base imbalance in a person with the above values?
· What information do you need to better determine? _________________________________
Mr. Jones, age 77, began to have difficulty breathing at the casino after playing slots for only 20 minutes. He seemed dizzy and confused so he was taken to the ER where his symptoms responded to oxygen treatment. He reports that he has had “heart failure”. On auscultation rales are heard. His ABGs were: pH = 7.3, PaCO2= 46 and HCO3-= 22
What acid-base imbalance is present? _____________ ______________
Does he have left or right side heart failure? Explain. __________________________________
Explain why this type of heart failure has caused the acid-base imbalance. ________________
An 18 year old female had a major skiing accident. Her injuries included a complete transverse
fracture of the left femur and tibia, multiple rib fractures and minor cuts and bruises. Initial arterial
blood gases were: pH = 7.35, PaCO2 = 45 and HCO3-= 26
Interpret each value: (low, normal, high)
· pH _______________ PaCO2 ________________ HCO3- _________________
After surgery and convalescence in the hospital she is released. A few hours later, her friends
notice that she has become lethargic and somewhat unresponsive but they figure it is due to the
pain medication and let her go to sleep. The next day her friends are unable to wake her because
she has slipped into a coma.
Her blood gas values are now: pH = 7.15, PaCO2= 70 and HCO3-= 25
How would you interpret each value?
· pH (low, normal, high)? PaCO2 _______________ HCO3- _________________
What imbalance is present? __________________________________
Has compensation occurred? Explain. _____________________________________________
Why might this acid-base imbalance have occurred? (There are several possibilities – list a couple.)