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Chem Exam 4
Round 4
31
Chemistry
Undergraduate 4
04/03/2013

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Term
Cause of low Na+ levels
Definition
Addison's, H2O intoxication
Term
major intracellular anion
Definition
mixed
Term
cause of low K+
Definition
cushing's, diuretics
Term
anion gap formula
Definition
(Na+K)-(Cl+HCO3)
Term
NR for anion gap
Definition
10-20
Term
NR for plasma and urine osmolality
Definition

urine: 300-900

plasma:275-295

Term
boiling and osmotic pressure ^ will do what to osmolality?
Definition
decrease
Term
osmolality formula
Definition
2(Na)+ (glucose/20)+(BUN/3)
Term
what is osmolality
Definition
# of molecules of solute per Kg of solvent (usually H2O)
Term
effects of hemolysis on potassium?
Definition
falsly decreased
Term
calc % transferrin saturation
Definition
(Fe/TIBC)x100
Term
TIBC calc
Definition

Tfx1.25

can't calc it Tf <70

Term
Cause of IDA
Definition
chronic blood loss, higher requirements(menstruation, preg, kids, etc)
Term
Trace element associated with vit B12
Definition
cobalt
Term
function of manganese
Definition
enzyme activator, spermatogenesis
Term
causes of resp acidosis
Definition
breathign disorders, morphine, barbituates, alcohol
Term
comp for resp alk
Definition
H+ in, HCO3 out
Term
causes of meta alk
Definition
antacids, vomiting--accum of alk or loss of acid
Term
salicilate mixed A-B disorder has which 2?
Definition
meta acid, then resp alk
Term
if delay in blood gas testing
Definition
O2 down, co2 up, pH down
Term
if air bubble
Definition
o2 up, co2 down, pH up
Term
normal ranges of pH, pCO2, HCO3
Definition

pH-7.35-7.45

pCO2-35-45

HCO3- 22-26

Term
TDM admin routes
Definition
oral, iv, IM, cutaneous, rectal, inhaled
Term
for TDM specimen-anticoag
Definition
heparin or plain red, avoid SST
Term
end product of ethylene glycol
Definition
oxalic acid, glycolic acid
Term
requirements of suitability of urine
Definition

creatinine- >.2

SG: 1.003-1.035

pH: 4-10

nitrite =

something about bleach...

Term
things that effect drugs
Definition
pregnancy (faster excretion), newborns (unpredictable), kids (^ metabolism, ajdust accord to weight), elderly (usually need to lower dose)
Term

Iron deficiency anemia

total Fe, ferritin, Tf, TIBC, % sat

Definition

total Fe down

ferritin down

Tf up

TIBC up

% sat down

Term

hemochromatosis

total Fe, ferritin, Tf, TIBC, % sat

Definition

total Fe up

ferritin up

Tf down

TIBC down

% sat up

Term

anemia of chronic dz

total Fe, ferritin, Tf, TIBC, % sat

Definition

total Fe down

ferritin normal to up

Tf down

TIBC down

% sat down

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