Lab Values Flashcards

1
Q

What does a BMP include?

A

electrolytes, glucose, renal function, acid/base

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2
Q

What does a CMP include?

A

BMP + albumin, ALT, AST, bilirubin, protein

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3
Q

What is the normal range for calcium?

A

9.5-10.5 mg/dL (correct if albumin is LOW)

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4
Q

What is the normal range for magnesium?

A

1.3-2.1 mEq/L

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5
Q

What drugs increase calcium?

A

vitamin D, thiazide diuretics

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6
Q

What drugs decrease calcium?

A

long-term heparin, loop diuretics, bisphosphonates, cinacalcet

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7
Q

What drugs decrease magnesium?

A

PPIs, diuretics, amphotericin B, chronic alcohol intake

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8
Q

What is the normal range for phosphate?

A

2.3-4.7 mg/dL

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9
Q

Which disease state increases phosphate?

A

CKD

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10
Q

What is the normal range for potassium?

A

3.5-5 mEq/L

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11
Q

What drugs increase potassium?

A

ACEi, ARBs, canagliflozin, cyclosporine, tacrolimus, potassium supplements, Bactrim, drospirenone-containing COCs

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12
Q

What is the normal range for sodium?

A

135-145 mEq/L

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13
Q

What drugs increase sodium?

A

hypertonic saline, tolvaptan

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14
Q

What drugs decrease sodium?

A

carbamazepine, oxcarbazepine, SSRIs, diuretics

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15
Q

What drugs decrease potassium?

A

beta-2 agonists, diuretics, insulin, SPS, steroids

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16
Q

What decreases bicarbonate?

A

topiramate

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17
Q

What is the normal range of BUN?

A

7-20 mg/dL

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18
Q

What increases BUN?

A

renal impairment and dehydration

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19
Q

What increases SCr?

A

Any drugs that impair renal function (aminoglycosides, amphotericin B, cisplatin, Colistimethate, cyclosporine, loop diuretics, polymyxin, NSAIDs, radiocontrast dye, tacrolimus, vancomycin)

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20
Q

What is the normal range for anion gap?

A

5-12 mEq/L

21
Q

What is the normal range for WBCs?

A

4,000-11,000 cells/mm3

22
Q

What drugs can increase WBCs?

A

systemic steroids, Epi

23
Q

What drugs can decrease WBCs?

A

clozapine, chemotherapy, carbamazepine, immunosuppressants

24
Q

What can increase esoinophils?

A

asthma, inflammation, parasitic inflammation

25
Q

What can increase basophils?

A

inflammation, hypersensitivity rxn

26
Q

What can increase lymphocytes?

A

viral infections, lymphoma

27
Q

What can decrease lymphocytes?

A

bone marrow suppression, HIV, systemic steroids

28
Q

What is the normal range for hemoglobin? (male and female)

A

13.5-18 g/dL (males) and 12-16 g/dL (females)

29
Q

What disease-state increases MCV (mean corpuscular volume)?

A

macrocytic anemia (B12 or folate deficiency)

30
Q

What disease-state decreases MCV (mean corpuscular volume)?

A

microcytic anemia (iron deficiency)

31
Q

What is the normal range for folic acid (folate)?

A

5-25 mcg/L

32
Q

What drugs decrease folate?

A

phenytoin, phenobarbital, primidone, methotrexate, Bactrim

33
Q

What is the normal range for B12?

A

> 200 pg/mL

34
Q

What drugs decrease B12?

A

PPIs, metformin

35
Q

What drugs cause glucose-6-phosphate dehydrogenase (G6PD) deficiency?

A

dapsone, methylene blue, nitrofurantoin, pegloticase, primaquine, rasburicase, quinidine, quinine, sulfonamides

36
Q

What drugs can cause a false increase in PT/INR?

A

daptomycin, oritavancin, telavancin

37
Q

What is the lifespan of platelets?

A

7-10 days

38
Q

What is the lifespan of RBCs?

A

120 days

39
Q

What is the normal range of platelets?

A

150k-450k cells/mm3

40
Q

What confirmatory test is used in HIT if the ELISA test is positive?

A

SRA (serotonin release assay)

41
Q

What are the pancreatic enzymes?

A

amylase and lipase

42
Q

What drugs can cause increases pancreatic enzymes d/t pancreatitis?

A

didanosine, stavudine, GLP-1a, DPP-4i, valproic acid, hypertriglceridemia

43
Q

What drugs increase CPK?

A

daptomycin, statins, tenofovir, raltegravir, dolutegravir

44
Q

Does TSH increase or decrease in hyperthyroidism?

A

TSH decreases (< 0.3 mIU/L)

45
Q

Does TSH increase or decrease in hypothyroidism?

A

TSH increases (> 3 mIU/L)

46
Q

What CD4 T lymphocyte count is indicative of an immunocompromised state in HIV?

A

< 200 cells/mm3

47
Q

What positive test indicates a pregnancy?

A

hCG

48
Q

What is the normal range for Vitamin D, serum?

A

> 30 ng/mL