Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/53

Click to flip

53 Cards in this Set

  • Front
  • Back
Role of phlebotomist?
trained to draw blood
Role of CLS, Med Tech
BS and Certified to do lab work
Role of CLT or Med. Lab technician?
Associate degree and certified to do lab work
Role of lab tests?
Discover,Confirm,Determine,Monitor,Detect recurrence
Test used to detect disease early when interventions can be effective?
Screening
(PAP,PSA,PPD)
(Sensitivity)
Test used on pts with sns/sxs of disease or abnormal screen?
Diagnostic
(Blood cultures)
(specificity)
True positive
inc'd = dec'd false negative
Sensitivity
True negative
dec'd = inc'd false positive
Specificity
Factors that interfere with test results
diet,meds,fluids,handling,collection,organ failure,posture,timing
Red Tube -->

Blue Tube -->
centrifuged,no anticoag=serum

NA citrate,preserve clotting factors to measure PTT, PT time
Purple tube -->

Tiger tube -->
EDTA, prevent clots, study WBC
Gel to seperate serum and cells
Gray -->

Yellow -->
study glucose

blood cultures
Green tube -->
study ammonia, carboxyhemoglobin
Liquid portion, collected without use of anticoagulant
Serum
Collect using anticoagulant, contains fibrinogen and clotting factors
Plasma
Blood composition
45% -->
55%--> with 90%?
RBCs
Plasma/Water
Study of formed elements in blood
Hematology
Hematology studies what transport functions?
oxygen,nutrients,immunity,waste products
Process of blood development and production?
hematopoiesis
Blood cells develop in bone marrow and differentiate into (2) types of lines?
myeloid and lymphoid
Myelocytes become leukocytes and are differentiated into (2) catergories?
agranular
granulocytes
Granulocytes
eosinophils,basophils,neutrophils
Agranular
lymphocytes
production of neutrophils,basophils,eosinophils,monocytes
myelopoiesis
3 components of CBC
WBC,RBC,Hg
Protein consisting of globin,protoporphyrin, and FE
hemoglobin
NL hemoglobin levels:
male - 14-18
female - 12-16
newborn - 17-23
Panic - <8 or >20
Packed cell volume
Hematocrit
NL Hct levels:
male- 40-54%
females - 37-47%
newborns- 50-62%
Panic <24%
Causes of inc'd Hct
smokers,high altitude,dehydration
(inc'd RBCs)
Causes of dec'd Hct
megaloblastic anemia,blood loss,Fe def. anemia,pregnancy
(dec'd RBC)
Avg volume of red cells
= Hct/RBC
MCV
Weight of Hg of RBC
= HgB/RBC
MCH
Avg. concentration of Hg in a volume of red cells
=HgB/Hct
MCHC
Measure of the degree of anisocytosis, used to determine thalessemia,Fe def. anemia
RDW
Formed in bone marrow,role in hemostasis
Platelets
(NL 140-400000)
(critical <50000,>1mil)
Red blood cell production in the bone marrow
erythropoesis
Variation in RBC size
Anisocytosis
(normocytic,microcytic - fe def.anemia,macrocytic - B12 folate def.anemia)
Variation in shape
Poikilocytosis
Spherocyte
Target cell
-no central pallor,osmotic fragility
-Abn Hg, clump in center,liver disease
Shistocytes
Burr Cells
ovalocyte
-fragments,heart valves
-projections, anorexia,burns,liver disease
-oval,sickle cell
Tear drop
Stomatocytes
Helmet cells
-cry for bone marrow
-smily cells,liver disease,lupus
-pac man, G6PD
Basophilic stippling is caused by
metal,lead poisoning
Howell-jolly bodies are found in
post splenectomy,DNA remenent new periphery
Bluish-purple dots in grps, represent FE in RBC
siderocytes
Denatured protein in G6PD
Heinz bodies
Stack of coins, due to multiple myeloma
Rouleaux formation
Contain retics, reflect responsiveness of erythropoetic activity-esp. for anemics
reticulocytes
Rate at which RBC settle out of anticoagulated blood in 1 hr
ESR
ESR is most usefull in
polymalgia rheumatica,temporal arteritis
Inc'd ESR
infection,inflammation,pregnancy
Dec'd ESR
microcytic
NL ESR
allergies,viral infxns,cirrhosis,malaria