Lab Flashcards
(17 cards)
1
Q
Alcohol
A
Up to 12 hrs
2
Q
Amphetamines
A
Up to 48 hrs
3
Q
Benzodiazepines
A
3 days depending on half life
4
Q
Cannabis
A
Occasionaly use - up to 3 days, high daily use for long time up to 4 weeks
5
Q
Cocaine
A
6 - 8 hours, metabolites up to 2 - 4 days
6
Q
Codiene
A
48 hours
7
Q
Heroin
A
1 to 3 days
8
Q
Methadone
A
3 days or more
9
Q
Morphine
A
2 to 3 days
10
Q
Phencyclidine
A
8 days
11
Q
Renal distributed in IV drug users
A
Nephrotic syndrome Acute glomerulonephritis amyloidosis Interstitial nephritis rhabdomyolsis
12
Q
Abnormalities in labs in anorexia nervosa
A
Metabolic:
Vomitting results in metabolic alkalosis and hypokalemia
Laxative misuse results in metabolic acidosis
13
Q
BMI
A
wt/ht m 2
14
Q
Test if for alcohol use:
A
Mean Corpuscular Volume
GGT
Breathalyzer
Carbohydrate Deficient Transferin
15
Q
CDT
A
The single most specific test, sensitive, for detecting heavy alcohol use in the last 10 days
16
Q
CT Scan
A
Widely available Shorter scan duration Low cost But, cuases exposure to radiation Poor sensitivity to early ishcemia and poor visualization for posterior fossa lesions
17
Q
Risk factors for prolonged QTc interval
A
Congenital Underlying heart disease, bradycardia Heart failure Ishcemia Female gender Extermes of age Presence of liver disease Electrolyte abnormalities Illicit drug use Starvation and anorexia High physical exertion
