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Likis FE, Andrews JC, Collins MR, et al. Nitrous Oxide for the Management of Labor Pain [Internet]. Rockville (MD): Agency for Healthcare Research and Quality (US); 2012 Aug. (Comparative Effectiveness Reviews, No. 67.)

Acronyms/Abbreviations/Symbols

±

plus or minus

less than or equal to

greater than or equal to

%

percent

ACGIH

American Conference of Governmental Industrial Hygienists

AE

adverse events

AHRQ

Agency for Healthcare Research and Quality

ANSI

American National Standard Institute

BUN

blood urea nitrogen

CGA

Compressed Gas Association

CI

confidence interval(s)

CINAHL

Cumulative Index to Nursing and Allied Health Literature

cm

centimeter

DHHS

Department of Health and Human Services

etc.

et cetera

EPA

United States Environmental Protection Agency

EPC

Evidence-based Practice Center

FDA

United States Food and Drug Administration

fl

fluid liter

g

gram(s)

g/dl

gram per decaliter

g/ml

grams per milliliter

Hb

hemoglobin

IM

intramuscular

Kg

kilogram

KQ

Key Question

mcM/L

micrometer per liter

mcmol/L

micromolar

mEq/L

milliequivalents per liter

Mg

milligram

mg/dl

milligrams per deciliter

min

minute(s)

ml

milliliter

mm

millimeter

mmHg

millimeters of mercury

mOsm/kg

milliosmoles per kilogram of water

mU/min

milliunits per minute

n, N

number

NACS

Neonatal Adaptive Capacity Scores

NFPA

National Fire Protection Association

NIOSH

National Institute for Occupational Health and Safety

NR

not reported

NS

not significant

N2O

nitrous oxide

OSHA

Occupational Safety and Health Administration

O2

oxygen

P, p

p value

pH

power of hydrogen

PICOTS

Population(s), Intervention(s), Comparator(s), Outcome(s), Timing, Setting(s)

PCO2

partial pressure of carbon dioxide

PO2

oxygen partial pressure

ppm

parts per million

pt

patient

RCT

randomized controlled trial

REL

recommended exposure limit

RR

relative risk

SD

standard deviation

SE

standard error

SGA

small for gestational age

TENS

transcutaneous electric nerve stimulation

TEP

technical expert panel

TLV

threshold limit value

torr

non-SI unit of pressure

TSCA

Toxic Substances Control Act

UCSF

University of California, San Francisco

U.S.

United States

USP

United States Pharmacopeia

VAS

visual analogue scale

vs.

versus

w/

with

wk(s)

week(s)

yr(s)

year(s)

μg/l

micrograms per liter

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Cover of Nitrous Oxide for the Management of Labor Pain
Nitrous Oxide for the Management of Labor Pain [Internet].
Comparative Effectiveness Reviews, No. 67.
Likis FE, Andrews JC, Collins MR, et al.

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