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Blood Disorders
Pharmacology
41
Medical
Professional
10/23/2011

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Cards

Term
where is ferrous iron converted to ferric
Definition
mucosal cell
then split from heme
Term
what is ferric iron bound to for immediate transport?
Definition
transferrin
Term
How and Where is iorn stored
Definition
Stored as hemosiderin

Liver and spleen
Term
what happens to transferrin in iron deficiency? overload?
Definition
Deficiency: transferrin up, ferritin down

overload: transferrin down, ferritin up
Term
When should iron be given?
Definition
microcytic anemia
post gastrectomy
evaluation for occult bleeding
Term
oral preparations of iron therapy
Definition
ferrous salts
sulfate, gluconate, fumarate
Term
clinical toxicity of iron
Definition
necrotizing gastroenteritis

metabolic acidosis
Term
Treatment of iron toxicity
Definition
gastric lavage

deferoxamine
Term
where is excess iron deposited?
Definition
heart, liver, and pancrease
Term
what are the active forms of vit B12?
Definition
deoxyadenosylcobalamin and methylcobalamin
Term
How is B12 absorbed?
Definition
complexed with IF in distal ileum
Term
how is folic acid absorbed?
Definition
polyglutamate to monoglutamate then bloodstream
Term
what are the two essential enzymatic reactions that require B12?
Definition
methylmalony-CoA to succinyl-CoA

CH3 H4 to H4 folate
Term
Which reaction can folate reverse?
Definition
5-CH3 H4 to H4 folate
Term
what does vit b12 and folic acid treat?
Definition
megaloblastic anemia
Term
Which drug reverses neurological damage?
Definition
vitB12
Term
what is the metabolism of heparin?
Definition
not bound to plasma proteins
does not pass placental barrier
terminated by liver metabolism
Term
kinetics of heparin
Definition
zero order
Term
heparin mech of action
Definition
accelerates antithrombin activity which inactivates thrombin and stops production of fibrin
Term
how do you reverse heparin?
Definition
discontinue or protamine
Term
low wt heparin
Definition
acts more on Xa
LONGER half-life
Term
This anticoag is given orally
Definition
coumarin
Term
How is coumarin distributed?
Definition
99% bound to albumin
Term
coumarin mech of action
Definition
prevent vit K dep clot fctrs (2,7,9,10)
Term
this prevents thrombosis post-op
Definition
heparin low dose
Term
this requires max heparin and warfarin
Definition
established venous thrombosis
Term
what measures heparin
Definition
PTT
Term
what measures warfarin?
Definition
PT
Term
which has more side effects, hep or coumarin?
Definition
hep
Term
this anti coag inhibits the hepatic metab of mny drugs
Definition
coumarin
Term
These drugs prevent ischemic stroke and cardiac events in patients w/unstable angina
Definition
clopidogrel and ticlopidine
Term
this is antibody that inhibits glycoprotein IIb/3b
Definition
abciximab
Term
This glycoprotein inhib is a peptide
Definition
eptifibatide
Term
side effect of platelet inhibs
Definition
neutropenia
Term
non pep glycoprotein inhib
Definition
tirofiban
Term
this inhibits platelet cAMP phosphodiesterase
Definition
dipyridamole
Term
mech of action for t-PA
Definition
activates plasmin, which digests fibrin
Term
how to treat t-PA toxicity
Definition
aminocaproic acid iv
Term
when to give epo
Definition
anemia of :

renal failure
HIV therapy
chemo
Term
This treats hemophilia B?
Definition
factor 9 complex
Term
this treats hemophilia A?
Definition
human factor 8
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