1. A patient has blood work done at 10 a.m. with the following results: hemoglob
ID: 3513749 • Letter: 1
Question
1. A patient has blood work done at 10 a.m. with the following results: hemoglobin concentration as 14 g/dL blood (IdL-I00mL), SaO2 of 98%, Pao2 of 100 mm. Hg. At 10:30 am she suffers a severe hemolytic incident that drops her hemoglobin to 7 g/dL. Show your work that explains your answers. a) What happens to her PaO2 (increase, decrease, no change)? Why? b) What happens to her arterial hemoglobin O2 capacity (cap HbO2) (increase, decrease, no change)? Why? c) What happens to her arterial O2 content (CaO2) (increase, decrease, no change)? Why? d) What happens to her O2 delivery rate if her cardiac output is 5 L/min Solubility of O2 in blood is 0.003 mL/100 mL blood/mm Hg; 1 g Hb can bind 1.34 mL 02.Explanation / Answer
A))in hemolytic shock the hb decrease s but pao2 remains unaffected as it is the partial pressure of o2 which is 50 percentage of saturation of hb
Pao2=inspired o2-o2 consumed
Hererethe pa02 remains same it has nothing to do with hb concentration
B))the arterial hb capacity is decreased it is the maximum amount of o2 that can combine with
I.e hb in g *1.34
Before hb was 14g/dl o2 capacity was 14*1.34=18.76
After shock hb decrease s toh 7g/dl where 7*1.34=9.36
C))cao2=(hb*1.34*saturation/100)+pao2*0.03=7*1.34*98%o.o3=12.19
Before it wasy21.38
Here hb concentration is considered so with decreased hb the cao2 is also decreased
D))oxugen transport depends on oxygen delivery is amount of oxygen delivered to the tissues it cardiac output*cao2 here before it was 5*21
Which is more than now after decrease in hb 5.*12
So the Oxygen delivery decrease s
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.