Clinical Chem. Flashcards
critical value of Serum Potassium
< 2.5 mEq/L
>6.5 mEq/L
Critical value of serum bicarbonate
< 10 mEq/L
> 40 mEq/L
Lipoprotein composed mostly of PROTEIN
HDL
Lipoprotein composed mostly of Triglycerides
Chylomicrons
transports ENDOGENOUS TAG to the liver
VLDL
transports EXOGENOUS TAG from the dietary
CM
FLOATING Beta Lipoprotein
Beta Lipoprotein/B-VLDL
Sinking Beta Lipoprotein
Lp (a)
Tocopherol
Vitamin E
Tocopherol deficiency
mild hemolytic anemia,RBC fragility, ataxia
Ergocalciferol, Cholecalciferol
vitamin D2
vitamin D2 deiciency in young
Rickets
vitamin D2 deiciency in adult
Osteomalacia
Thiamine
vitamin B1
Beriberi, Wernicke-Korsakoff syndrome
vitamin B1 deficiency
Pellagra is a result of deficiency in
Niacin, Nicotinic acid, Nicotinamide(B3)
Cyanocobalamine
vit B12
Megaloblastic anemia, neurologic abnormalities
Cyanocobalamine(B12) deficiency
Panthotenic acid
B5
Depressed immune system, weak muscles
Panthotenic acid(B5) deficient
metal with high affinity to keratin
arsenic
odor of bitter almonds
Cyanide toxicity
odor of garlic
Arsenic toxicity
a chronic user of _____ may still test positive after 45 days
45 days
psychoactive substance of marijuana
THC - Tetrahydrocannabinol
metabolite of cocaine
benzoylecgonine
drug abuse with direct toxicity on myocardium
Cocaine
under influence of alcohol
> or equal to 0.10%
symptoms of alcohol intoxication begin
> or eq. to 0.05%
unable to stand or walk, vomitting, impaired consciousness
0.27-0.40
mental confusion, dizziness, strongly impaired motor skills (staggering, slurred speech)
0.18-0.30
0.35-0.50
coma and possible death
most sensitive organ to alcohol
liver
most commonly abused substance in the world
Alcohol
drug of choice for petit mal seizure
Ethosuximide
Carbamazepeine
treatment for various seizure disorders
treatment for petit mal and grand mal seizures
Valproic acid
Trinder reaction is for determination of
Aspirin (Salicylate)
most potent benzodiazepine
Valium
anti-tussive opiate
Codeine
Phenobarbital is a
Anti-epileptic drug
Methotrexate is a
Anti-neoplastic/chemotherapeutic
Theophylline is a
Bronchodilator
Peak concentrations are drawn
1 hour after oral administration
Through concentrations specimens drawn
before the next dose
time required to reduce a drug level to half of its initial value
Half-life
reflects lowest level of drug in the blood
Through concentration
highest concentration of drug obtained in the dosing interval
peak concentration
distribution
refers to the delivery of the drug to the tissues
Cholecystokinin (CKK)
hormone that inhibits gastric emptying, stimulates pancreatic secretion, & gallbladder contractions
method for measuring metanephrines & normetaneprhines
Pisano method
Zimmerman reaction
method for measuring 17-ketogenic steroids
Porter-Silber method
method for measurement of 17-hydroxycorticosteroids (17-OHCS)
Most potent androgen
Testosterone
most potent estrogen
Estradiol
hypogonadism results in male and female _____
infertility
Klinefelter’s syndrome
1’ deficiency
Testosterone: low
LH & FSH: High
metabolite of Catecholamines
Vanillylmandelic acid
metabolite of dopamine
Homovalinic acid
specimen in catecholamine measurement
Plasma
24-hr urine
increased catecholamines is seen in what condition?
Pheochromocytoma
confirmatory test for Conn’s disease
Oral salt loading test
screening tests for CUSHING SYNDROME
24-hr urinary free cortisol
overnight dexamethasone
midnight salivary cortisol test
confirmatory tests for CUSHING SYNDROME
low-dose dexamethasone suppression test
midnight plasma cortisol
corticotropin-releasing hormone (CRH) stimulation test
increased cortisol
increased ACTH
*due to pituitary tumor
Cushing’s disease
increased cortisol
decreased ACTH
Cushing’s syndrome
testing for this hormone requires EARLY MORNING SPECIMEN
Cortisol
ACTH is highest between _____ to _____ and lowest between _____ to _____
6am to 8am; 6pm to 11pm
Cortisol is highest between _____ to _____ and lowest between _____ to _____
8am to 10am; 10pm to 12am
Zona glomerulosa of Adrenal cortex
outer produces mineralocorticoids (Aldosterone)
Zona fasciculata of Adrenal cortex
middle produces glucocorticoids(cortisol)
Zona reticularisof Adrenal cortex
inner
produces weak androgens (DHEA)
Confirmatory test for hypothyroidism
TSH (increased)
screening test for congenital hypothyroidism
T4 (decreased)
T3&T4: Dec
T3 Uptake: Dec
TSH: Inc
Primary hypothyroidism
T3&T4: Dec
T3 Uptake: Dec
TSH: Dec
Secondary hypothyroidism
T3&T4: Inc
T3 Uptake: Inc
TSH: Inc
2’ Hyperthyroidism
T3&T4: Inc
T3 Uptake: Inc
TSH: Dec
1’ Hyperthyroidism
T3 uptake is __________ to T3&T4 concentration
DIRECTLY PROPORTIONAL
T3 uptake
test for quantitation for TBG
confirm results of FT3&FT4, or abnormalities in the relationship of total T4 & THBR test
TBG
indirectly asses the concentration of circulating free T4
Free thyroxine index (FT4I)
Trace element important to thyroid hormone synthesis
Iodine
somatedin-C
screening test for Acromegaly
confirmatory for Acromegaly
Glucose Suppression Test - OGTT (75 g)
increased GH in adults
Hyperglycemia
excess GH in children
Gigantis,
hormone markeldy increase during deep sleep
Somatotropin (GH)
MOST ABUNDANT hormone in anterior pituitary gland
GH/Somatotropin
“Master gland”
Pituitary gland