Exam 3: Anemia Flashcards
(31 cards)
Characteristics of the RBC so it doesn’t get destroyed in microcirculation
Discoid and pliable
Average life span of RBC?
100-120 d
LC of RBC
EPO Bone Marrow makes them Maturation by iron and folate 120 d Destruction by spleen
What determines anemia in lab findings?
HbG count less than
130 males
120 females
What are the problems before and during RBC production?
Hypoproliferative
Maturation disorders
What are the problems after RBC released from marrow?
Hemolysis and hemorrhage
In hypoproliferative anemia, all are the possible causes except:
A. No EPO released from kidneys
B. Bone marrow failure (aplastic anemia)
C. Iron deficiency
D. Chronic inflammatory states
F. Liver failure (inc cytokines) marrow cannot use iron
F
In maturation disorders, all are the causes except:
A. Cytoplasmic defects due to iron deficiency (microcystic and hypochromic)
B. Nuclear defects (macrocytic RBCs)
C. Chronic iron overdose
D. Folate/vita. B12 deficiency
C
2 main causes of hemolysis:
A. Intracorpuscular defects
B. Extracorpuscular defects
C. Both
C
Membrane abnormalities (spherocytosis) and enzymopathy (G6PD) are examples A. Intracorpuscular defects B. Extracorpuscular defects
A
In extracorpuscular defects the problem is due to the structure of the RBCs. T/F
False.
Vasculitis due to autoimmune diseases can cause
Extracorpuscular defects
Anemia in SLE. Antibodies stick to RBCs and immune system kills the RBCs is an example of intracorpuscular defect. T/F
False
Symptoms of anemia include all except: A. Fatigue B. Breathlessness C. Pink conjunctiva D. Loss of stamina
C
On PE for anemia look for: A.Pallor B. Tachycardia (esp on effort) due to dec oxygen. Compensation C. Murmur (valvular) D. Hypotension orthostasis E. Dec urine output (renal failure)
C. It’s a flow murmur. Does not have anything to do with value defect
Which lab exam is mainly used for diagnosing anemia?
CBC
What is a possible cause if WBC and platelets are also low with anemia?
Bone marrow
Anemia and high number of immature reticulocytes. Comment on the bone marrow.
Bone marrow is working hard and fast. But no time to mature
Anemia and mature RBCs. Comment on the bone marrow
Bone marrow is not making new RBCS
Nuclear material in RBC means:
A. RBC is more mature
B. RBC is immature
B
Classify anemia by: A. Reticulocyte count B. WBC C. Platelet D. Shape E. RBC count
A
Name some drugs that dec levels of Vit B12 and B6
Isoniazid and chemo drugs
75 YO male. Palor, hypotension, weakness, 3 days melena, low HGB. Diagnose
If longer to develop, longer to present symptoms
Upper GI bleed from NSAID induced peptic ulcer
45 YO female. Pallor. Easy fatiguability when doing chores. Diagnose
Abnormal uterine bleed from myoma uteri