lab values Flashcards
composition of blood (3)
- plasma (water, proteins, nutrients, hormones, etc)
- buffy coat (WBC, platelets)
- hematocrit (RBC)
depressed hematocrit % =
anemia
elevated hematocrit % =
polycythemia
RBC transport _____
O2 to tissue cells
low WBC =
immuocompromised/suppressed
high WBC =
infection, malignancy, or trauma (surgery), can indicate decrease bone marrow health
low hematrocrit (Hct) symptoms
weakness, chill, dyspnea, fatigue
high hematocrit (Hct) =
thrombus, polycythemia
low hemoglobin (Hgb) =
anemia, bleed/blood loss
high hemoglobin (Hgb) =
polycythemia
low platelet count =
slow platelet plug formation
high platelet count =
increase risk for thrombus
thrombocythemia
high platelets (CVA or MI risk)
thrombocytopenia
low platelets
prothrombin time (PT) and partial thromoplastin time (PTT)
- measure the time is takes for blood clot formation
_____ is usually performed for individuals on coumadin/warfarin/heparin
prothrombin time and partial thromoplastin time
analysis of gas levels in blood
- evaluate acid-base status (pH), ventilation (PaCO2), oxygenation of blood
- partial pressure of carbon dioxide in arterial blood gives info
- bicarbonate is an important component of buffering that keeps blood from being too acidic or too basic
arterial blood gas
