cardiopulm - 3 common lab tests Flashcards
aterial blood gas - why are they collected
evaluate acid-base status (pH), ventilation, and oxy of the aterial blood
what is the aterial blood
the oxygenated blood in the circulatory system found in the pulmonary vein, the left chambers of the heart, and in the arteries.
what does SaO2 stand for
the percentl oxy saturation of hemoglobin
tells us how well the lungs functioning to oxy blood
what is PaCO2 (ventilation) used for
partial pressure of CO2
tell us how well the lungs are able to remove CO2
what is the mean range for pH from ABG (aterial blood gas)
7.4 (7.33 - 7.45)
what is acidemia
elevated acidity of the blood <7.35
what is alkalemai
decrease in the acidity of the blood pH> 7.45
what is Eucapnia
normal level of CO2 in the arterial blood
35-45
what is hypercapnia
elevated level of CO2 in arterial blood
<35
what is hypocania
low level of CO2 in the blood
>45
what is considered severe hypoxia
< 40 mmHg
what are cardiac biomakers
certain enzymes that leak out of the heart cells and into the blood after a MI
creatine phosphokinase (CK) and troponin
what is the CK-MB for
measures the amount of creatine kinase-MB (CK-MB) in a patient’s blood
used for to see if patient has MI
appears in the blood 4 hours after MI
declines after 48-72 hours
how long will tropinin remian elevated following MI
5-7 days
is HDL or LDL associated with the build up of fatty plaques
LDL
what does CBC count
RBC
WBC
platelets
hgb
hematocrit
what is hematocrit
a blood test that measures the percentage of red blood cells (RBCs) in a person’s blood by volume
what does low hematocrit intricate
anemia
blood loss
vit and minerals depicts
what lab values represent respiratory acidosis
PaCO2 > 45
Ph < 7.40
what lab values represent respiratory alkalosis
PaCO2 < 35
Ph > 7.40
what is the function of bicarbonate (HCO3)
help maintain the acid-base balance in the bod
what is normal bicarbonate (HCO3) levels in the body
22- 26
below 20 an issue
what does bicarbonate (HCO3) <22 and pH <7.40
metabolic acidosis
what does bicarbonate (HCO3) > 26 and pH >7.40
metabolic alkalosis
