Naplex Formulas Flashcards
IBW men
Use IBW to dose hydrophilic drugs
50kg + 2.3 kg/inch > 5ft
IBW women
45.5kg + 2.3 kg/in > 5ft
Creatinine Clearance
CrCl = (140-age)(kg)/(72Scr) x 0.85 if female
BMI
Kg/m2
Adj body weight for obese/overweight
AdjBW= IBW + 0.4(TBW-IBW)
Obese
BMI > 30 or 130% IBW
Theophylline
Always dose by IBW
1 Aminophylline = 0.8 Theophylline
0.8 theophylline / 1 Aminophylline
Aminophylline prodrug x 0.8 = theophylline
Specific gravity
Grams/mL
PS PORCS
Strong inducers
Phenytoin
Smoking
Phenobarbital Oxcarbazepine Rifampin Carbamazepine St John's Wort
G PACMAN
Strong inhibitors
Grapefruit
Protease inhibitors Azole antifungals Cyclosporine and cimetidine Macrolides (clarithromycin, erythromycin) Amiodarone NonDHP CCB - diltiazem, verapamil
SLUDGE
Cholinergic effects
Salivation Lacrimation Urination Diarrhea GI distress Emesis Miosis (constrict)
Organophosphate toxicity treat with Atropine (ACh blocker) and pralidoxime relieve respiratory paralysis
Dextrose only (typically 5%)
ABDO Synercid PL
Ampho B Bactrim Dalbavancin, oritavancin Quinupristin/dalfopristin Pentamidine (Pentam)
Lorazepam
Saline only (typically 0.9%)
ACDE PI
Ampicillin Ampicillin Sulbactam (Unasyn) Capsofungin (or LR), Cancidas Daptomycin (or LR), Cubicin Ertapenem (Invanz)
Phenytoin
Infliximab (Remicade)
Do not refrigerate these IV formulations
ABCMMP
Acyclovir Bactrim Clindamycin Metronidazole Moxifloxacin
Phenylephrine
Require light protection
DEMN
Dopamine Doxycycline Linezolid Metronidazole Nitroprusside Norepinephrine Phytonadione (vitamin K) Bactrim Verapamil
Live vaccines
Measles Mumps Rubella MMR MMRV varicella Zoster (shingles) Yellow fever LAIV
mEq
mEq = mmol x valence
Valence = charge of cation Na1 Ca2
Live vaccines
Measles Mumps Rubella MMR MMRV varicella Zoster (shingles) Yellow fever
Fahrenheit to Celsius
F = 1.8C + 32
Dextrose calories
3.4 kcal/gram
10% fat emulsion
1.1 kcal/mL
E value isotonicity
Measure total g of Na needed (total volume of 0.9%NS)
E = 58.8 i / (1.8)MW
1 Grain
65 mg