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chao_he

铜虫 (小有名气)

[交流] Prohibited Abbreviations

PROHIBITED/DANGEROUS ABBREVIATIONS:

Abbreviations
Intended Meaning
Misinterpretation
PLEASE USE:

1/d
one daily
tid
1 daily

AD, AS, AU
right ear, left ear, each ear
OD, OS, OU
right ear, left ear, each ear

BT
bedtime
bid (twice daily)
bedtime

cc
cubic centimeters
“u” (units)
mL

D/C
discharge or discontinue
Premature discontinuation of medications if D/C (intended to mean “discharge”) has been misinterpreted as “discontinued” when followed by a list of discharge medications.
Discharge or Discontinue

hs (h.s.)
at bedtime, hours of sleep
half-strength
at bedtime

HS
half-strength
bedtime
half-strength

IJ
injection
IV or intrajugular
injection

IN
intranasal
IM or IV
intranasal or NAS

IU
international unit
IV (intravenous) or 10 (ten)
units

od (o.d.)
once daily
“right eye" (OD-oculus dexter), leading to oral liquid medications administered in the eye.
daily

OD, OS, OU
right eye, left eye, each eye
AD, AS, AU (right ear, left ear, each ear)
right eye, left eye, each eye

OJ
orange juice
OD or OS (right or left eye); drugs meant to be diluted in orange juice may be given in the eye.
orange juice

per os
by mouth or orally
“os” can be mistaken as “left eye” (OS-oculus sinister)
PO, by mouth, orally

q.d. or qd
every day
q.i.d., especially if the period after the “q” or the tail of the “q” is misunderstood as an “l.”
daily

q.o.d. or QOD
every other day
“q.d.” (daily) or “q.i.d.” (4 times daily) if the “o” is poorly written
every other day

q1d
daily
q.i.d. (r times daily)
daily

q6PM, etc.
early evening at 6 p.m.
every 6 hours
“6 PM nightly,” or "6 PM daily.”

qhs (q.h.s.)
at bedtime
“qhr” or “every hour”
at bedtime

qn
nightly
qh (every hour)
nightly

SC, SQ, sub q
subcutaneous
SC mistaken as SL (sublingual); SQ mistaken as “5 every;” the “q” in “sub q” has been mistaken as “every” (e.g., a heparin dose order sub q 2 hours before surgery misunderstood as every 2 hours before surgery.
“subcut” or “subcutaneously”

ss
sliding scale (insulin) or ½ (apothecary)
55
Spell out “sliding scale”; use “one-half” or “½.”

SSI
sliding scale insulin
Strong solution of iodine (Lugol’s)
sliding scale (insulin)

SSRI
sliding scale regular insulin
selective-serotonin reuptake inhibitor
sliding scale (insulin)

TIW, tiw, t.i.w.
3 times a week
“3 times a day” or “twice in a week.”
3 times weekly

U or u
unit
Number 0 or 4, causing a 10-fold overdose or greater (e.g., 4U seen as “40” or “4u” seen as “44”); mistaken as “cc” so dose given in volume instead of unites (e.g., 4u seen as 4 cc).
unit




SYMBOLS:

Symbols
Intended Meaning
Misinterpretation
PLEASE USE:

/ (slash mark)
separates 2 doses or indicates “per”
number 1 (“25 units/10 units” read as “110 units.”)
Do not use a slash mark to separate doses.  Spell out the word “per.”

+
“plus” or “and”
4
and

>  or  <
“greater than” or “less than”
opposite of intended
“greater than” or “less than”

&
and
2
and

@
at
2
at


Minim
mL
Use the metric system

x3d
for 3 days
3 doses
for 3 days


dram
3
Use the metric system

°
hour
zero (e.g., q2° seen as q 20)
hr, h, or hour

Fg
microgram
mg
mcg








DOSE DESIGNATIONS AND OTHER INFORMATION:

Dose Designation/Information
Intended Meaning
Misinterpretation
PLEASE USE:

“0” (zero) after decimal point (1.0)
1 mg
10 mg if the decimal point is not seen.
Do not use terminal zeros for doses expressed in whole numbers.

Large doses without properly placed commas (e.g., 100000 units; 1000000 units)
100,000 units; 1,000,000 units
100000 has been mistaken as 10,000 or 1,000,000; 1000000 has been mistaken as 100,000.
Use commas for dosing units at or above 1,000 or use words such as 100 “thousand” or 1 “million” to improve readability.

mg. or mL. with a period following the abbreviation.
mg, mL
The period is unnecessary and could be mistaken as the number 1 if written poorly
Use mg, mL, etc., WITHOUT a terminal period.

Name letters and dose numbers run together (e.g., Inderal40 mg)
Inderal 40 mg
Misread as Inderal 140 mg
Always use a space between drug name, dose, and unit of measure.

No zero before decimal dose (.5 mg)
0.5 mg
5 mg
Always use zero before a decimal when the dose is less than a whole unit.

Numerical dose and unit of measure run together (e.g., 10mg, 100mL)
10 mg; 100 mL
The “m” is sometimes mistaken as a zero or 2 zeros, risking a 10- to 100-fold overdose.
Place adequate space between the dose and unit of measure.




DRUG NAME ABBREVIATIONS:

Drug Name
Intended Meaning
Misinterpretation
PLEASE USE:

ARA A
vidarabine
cytarabine (ARA C)
Use complete drug name

AZT
zidovudine (Retrovir)
azathioprine or aztreonam
Use complete drug name

CPZ
Compazine (prochlorperazine)
chlorpromazine
Use complete drug name

DPT
Demerol-Phenergan-Thorazine
diphtheria-pertussis-tetanus (vaccine)
Use complete drug name

DTO
diluted tincture or opium, or deodorized tincture of opium
tincture of opium
Use complete drug name

HCI
hydrochloric acid or hydrochloride
potassium chloride (“h” misinterpreted as “k”)
Use complete drug name

HCT
hydrocortisone
hydrochlorothiazide
Use complete drug name

HCTZ
hydrochlorothiazide
hydrocortisone (seen as HCT250 mg)
Use complete drug name

MgS04
magnesium sulfate
morphine sulfate
Use complete drug name

MS, MS04
morphine sulfate
magnesium sulfate
Use complete drug name

MTX
methotrexate
mitoxantrone
Use complete drug name

PCA
procainamide
patient controlled analgesia
Use complete drug name

PTU
propylthiouracil
mercaptopurine
Use complete drug name

T3
Tylenol with codeine No. 3
liothyronine
Use complete drug name

TAC
triamcinolone
tetracaine, Adrenalin, cocaine
Use complete drug name

TNK
TNKase
TPA
Use complete drug name

ZnS04
zinc sulfate
morphine sulfate
Use complete drug name




STEMMED DRUG NAMES:

Stemmed Drug Names
Intended Meaning
Misinterpretation
PLEASE USE:

IV Vanc
intravenous vancomycin
Invanz
Use complete drug name.

Nitro drip
nitroglycerin infusion
sodium nitroprusside infusion
Use complete drug name.

Norflox
norfloxacin
Norflex
Use complete drug name.
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