Fall + Summer Comp Flashcards
(375 cards)
Storage form of iron
ferritin, in liver (Fe2+)
what type of iron is absorbed best?*
heme-iron (animal sources)
nutrients required for proper iron absorption*
B12, Folic Acid, Copper, Vit C
EPO is produced by
kidneys
Thrombopoietin is produced by
liver and kidneys
where are platelets stored?
20-40% in spleen
Pelger-Huet anomaly - cell in peripheral blood smear
inherited blood condition where WBC have dumb-bell shaped nucleus
poikilocytosis
variation in RBC shape
Schistocyte
RBC fragment, characteristic of mechanical trauma
anisocytosis
variation in RBC size
Burr cells
aka echinocytes
associated with uremia, chronic renal disease
irregular short projections
basophilic staining of rbc*
aggregates of ribosomes
Inclusions in RBC*
basophilic staining: aggregates of ribosomes, many small dots
Howell-Jolly bodies: nuclear fragm after splenectomy, one dot*
Peyer’s patches*
B cells in ileum (sm. intestines)
NK cells
recognize non-self proteins, non-specific immunity
Left shift/”Bandemia” *
higher number of immature WBC
serious infection
CBC: inc segments and bands
aplastic anemia
bone marrow suppressed, no production
segmented neutrophils, common in…?
bacterial infection
most common anemia cause
iron deficiency
haptoglobin
binds free HGB (after RBC taken apart) and recycles heme
signs of anemia (later Sx, asymp initially)
fatigue, SOB, weakness
pallor: conjunctiva, mucosa, palmar creases
tachycardia
Sickle Cell*
DNA point mutation in HGB Beta chain
smear: target + sickled cell
what can uremic metabolite from renal failure cause?
decrease lifespan of RBC
G6PD function
protects RBC from oxidative stress, genetic deficiency can cause anemia (episodic from triggers)