Chapter 4: Learning Lab Values & Drug Monitoring Flashcards

1
Q

What can cause agranulocytosis

A

Clozapine
PTU
methimazole
procainamide
carbamazepine
Bactrim
Isoniazid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What causes increased calcium levels

A

Calcium supplementation
Vitamin D
thiazide diuretics

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What causes decreased calcium levels

A

long-term heparin
loop diuretics
bisphosphonates
cinacalcet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What causes decreased magnesium levels

A

PPIs, diuretics

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What causes increased phosphate levels

A

Renal failure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What causes increased K levels

A

ACEi
ARBs
ARAs
aliskiren
canagliflozin
cyclosporine
tacrolimus
K supplements
SMX/TMP
drosperinone-containing contraceptives

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What causes decreased K levels

A

steroids
B-2 agonsts
diuretics
insulin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What causes decreased Na levels

A

carbamazepine
oxcarbazepine
SSRIs
diuretics

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What causes decreased bicarbonate levels

A

Topiramate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What causes increased BUN levels

A

Renal impairment and dehydration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What causes increased SCr

A

Aminoglycosides
amphotericin B
cisplatin
colistimethane
cyclosporine
loop diuretics
polymyxin
NSAIDs
radiocontrast dye
tacrolimus
vancomycin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Increased anion gap suggests:

A

metabolic acidosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What causes increased mean corpuscular volume (MCV)

A

B12 or folate deficiency

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What causes decreased mean corpuscular volume (MCV)

A

iron deficiency

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Folic acid is decreased due to

A

Phenytoin/phosphenytoin
phenobarbital
primidone
methotrexate
SMX/TMP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Vitamin B12 is decreased due to

A

PPIs, metformin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

When is reticulocyte count decreased

A

In untreated anemia due to

iron
folate
B12 deficiency

and with bone marrow suppression

18
Q

Coombs test is positive in

A

drug-induced hemolysis caused by

PCNs
cephalosporins
dapsone
isoniazid
levodopa
methyldopa
methylene blue
nitrofurantoin
pegloticase
primaquine
quinidine
quinine
rasburicase
rifampin
sulfonamides

19
Q

The RBC destruction with G6PD deficiency is triggered by:

A

Stress
foods (fava beans)
dapsone
methylene blue
nitrofurantoin
pegloticase
primaquine
rasburicase
sulfonamides

20
Q

Anti-Xa peak should be obtained ___ hours after SC LMWH dose

A

4 hours

21
Q

What is Anti-Xa used to monitor

A

LMWH and UFH

22
Q

PT/INR is used to monitor

A

warfarin

23
Q

INR increases (without warfarin) due to

A

liver disease

24
Q

False increase in INR occurs from

A

daptomycin, oritavancin, telavancin

25
Q

aPTT or PTT is used to monitor

A

UFH and direct thrombin inhibitors

26
Q

False increase in aPTT occurs from

A

oritavancin
televancin

27
Q

Platelets decrease due to

A

Heparin
LMWHs
fondaparinux
linezolid
valproic acid

28
Q

Which drugs are impacted by low albumin

A

Warfarin, calcium and phenytoin

29
Q

Which drugs require correction for low albumin

A

calcium
phenytoin
valproic acid

30
Q

Amylase and lipase increase in pancreatitis, which can be caused by

A

didanosine
GLP-1 agonist
DPP-4 inhibitors
valproic acid
hypertriglyceridemia

31
Q

Creatine Kinase (CK or CPK) is increased due to

A

daptomycin
statins
tenofovir
raltegravir
dolutegravir

32
Q

What are the cardiac enzymes that are used in the diagnosis of MI

A

Troponin T
Troponin I
BNP
NT-proBNP

33
Q

BNP and NT-proBNP are markers of

A

Cardiac stress.

Higher values indicate higher likelihood of HF

34
Q

Increased TSH (hypothyroidism) is due to

A

Tyrosine kinase inhibitors
lithium
carbamazepine

35
Q

Lactic acid can be increased due to

A

NRTIs and metformin

36
Q

Prolactin can increase due to

A

haloperidol
risperidone
paliperidone

37
Q

Uric acid can be increased due to

A

diuretics
niacin
low doses of ASA
pyrazinamide
cyclosporine
tacrolimus
select pancreatic enzyme product
select chemotherapy (TLS)

38
Q

Causes of DILE

A

anti-TNF agents
hydralazine
isoniazid
methimazole
methyldopa
minocycline
procainamide
PTU
quinidine
terbinafine

39
Q

Which lab parameters are used to assess HIV and monitor treatment

A

CD4+ lymphocyte count and viral load

40
Q

What is the antibiody test used to screen for syphilis

A

RPR

41
Q

Those with TPMT deficiency may require lower doses of

A

azathiopurine

and

mercaptopurine

42
Q

Therapeutic drug level for vanco

A

Trough: 15-20 mcg/mL for most serious infections (pneumonia, endocarditis, osteomyelitis, meningitis, and bacteremia)
Trough: 10-15 mcg/mL for others