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NAPLEX > Calculations > Flashcards

Calculations Flashcards

1
Q

1 tsp= ___ mL

A

5 mL

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2
Q

1 tbsp= ___ mL

A

15 mL

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3
Q

1 fl oz= _____ mL

A

29.57 mL

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4
Q

1 cup=___ oz= ____ mL

A

8 oz= 240 mL

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5
Q

1 pint=___ oz= ____ mL

A

16 oz= 473 mL

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6
Q

1 qrt=___ pint= ____ mL

A

2 pint= 946 mL

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7
Q

1 gallon=___ qrts= ____ mL

A

4 quarts=3785 mL

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8
Q

1 kg=____ lbs

A

2.205 lbs

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9
Q

1 oz=_____ g

A

28.35 g

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10
Q

1 grain= _____ mg

A

65 mg

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11
Q

1 inch=_____ cm

A

2.54 cm

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12
Q

1 m=____ cm

A

100 cm

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13
Q

C=

A

(F-32)/1.8

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14
Q

F=

A

(C*1.8)+32

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15
Q

ANC equations

A

WBC * (%segs+%bands)/100

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16
Q

Pack per year calculation

A

packs * number of years smoked

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17
Q

Number of cigarettes in a pack

A

20 cigarettes per pack

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18
Q

Mean Arterial Pressure Equation

A

[(2*diastolic pressure)+ Systolic pressure]/3

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19
Q

Cockcroft Gault Equation

A

(140-age)*weigth(kg)/72(Scr) *(0.85 if female)

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20
Q

What is the formula for calculating specific gravity?

A

Specific gravity = weight of substance (g)/ density of water (mL)

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21
Q

Minimum Weighable Quantity Equation

A

Sensitivity requirement/ 0.05

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22
Q

MW of NaCl

A

58.5

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23
Q

1 L of NaCl = ____ mEq

A

154 mEq

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24
Q

TPN

10% Lipid cals/mL

A

1.1 cal/mL

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25
Q

TPN

30% Lipid cals/mL

A

3 cal/mL

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26
Q

TPN

20% Lipid cals/mL

A

2 cal/mL

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27
Q

TPN

Lipid cals/g

A

10 cal/g

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28
Q

TPN

Protein cal/g

29
Q

TPN

Carbs cal/g

30
Q

TPN

Total energy expenditure equation

A

BEE * Stress factor * activity factor

31
Q

mMol, mEq, mOsm

MW of sodium

32
Q

mMol, mEq, mOsm

MW of K

33
Q

mMol, mEq, mOsm

MW of Chloride

34
Q

mMol, mEq, mOsm

MW of calcium

35
Q

mMol, mEq, mOsm

MW of hydrogen

36
Q

mMol, mEq, mOsm

MW of oxygen

37
Q

mMol, mEq, mOsm

1 mmol= ?

38
Q

mMol, mEq, mOsm

1 mEq= ?

A

MW in mg % valence

39
Q

mMol, mEq, mOsm

1 mOsm= ?

A

MW in mg % # of ions

40
Q

PK

pH = ?

acidic drug

A

= pKa + log [A/HA]

41
Q

PK

pH= ?

alkaline drug

A

= pKa + log [B/BH]

42
Q

PK

Bioavailability of IV meds =

43
Q

PK

Bioavailability =

A

=Dose * Bioavailability Factor
= F = (AUC oral / AUC iv) x 100%

44
Q

PK

Volume of Distribution (Vd)=

A

dose % concentration

45
Q

PK

Half life =

A

= 0.693/ke
= 0.693 (Vd/Concentration)

46
Q

PK

Elinimation constant =

A

Vd/Clearance

47
Q

PK

Clearance=

A

= Vd*ke

=F* dose/AUC

48
Q

PK

Loading Dose =

A

= [Concentration * Vd]/ F

49
Q

Anion Gap =

A

=Na - Cl - HCO3

50
Q

BSA=

A

sqrt [cm * kg]/3600

m^ squared

52
Q

IBW

Male

A

50+2.3(inches over 60)

53
Q

IBW

Female

A

45.5 + 2.3 (inches over 60)

54
Q

AdjBW=

Meds you use adjBW

A

= IBW + 0.4 (TBW-IBW)

Aminoglycoside in obese patients

55
Q

IBW meds

A
  • Acyclovir
  • Theophylline
  • Aminophylline
  • Levothyroxine
56
Q

Asthma

IV Aminophylline to PO Theophylline =

A

= Total aminophylline dose * 0.8

57
Q

Seizure

Corrected phenytoin level

A

measured level / [(0.2 * Albumin)+ 0.1]

if CrCl < 15 use 0.1 instead of 0.2
remember goal level 10-20 mg/mL

58
Q

Dyslipidemia

LDL =

A

TC-HDL - TG/g

59
Q

Dyslipidemia

Statin conversion

A

Pitavastatin 2 mg
Rosuvastatin 2 mg
Atorvastatin 10 mg
Simvastatin 20 mg
Lovastatin 40 mg
Pravastatin 40 mg
Fluvastatin 80 mg

60
Q

HTN

Metoprolol IV:PO

61
Q

HTN

Loop Diuretic Conversion iv:po

A

Furosemide 20:40
Budesonide 1:1
Torsemide 20:20
Ethacrynic Acid 50:50

62
Q

Steroid Conversion

A

Cortisone 25 mg
Hydrocotisone 20 mg
Prednisone 5 mg
Prednisolone 5 mg
Methyprednisolone 4 mg
Triamcinolone 4 mg
Dexamethasone 0.75 mg
Betamethasone 0.6 mg

63
Q

Levothyoxine IV:PO

64
Q

Amount of elemental iron in Ferrous sulfate

65
Q

Amount of elemental iron in Ferrous gluconate

66
Q

Amount of elemental calcium in calcium carbonate

67
Q

Amount of elemental calcium in calcium citrate

68
Q

Corrected calcium =

A

= measured Ca + 0.8(4 - Albumin)

NAPLEX (9 decks)

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