Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

NIOSH hazard controls HC29 - hazard control of nitrous oxide during cryosurgery.

Authors
NIOSH
Source
NIOSH 1999 Jan; :1-3
NIOSHTIC No.
20000283
Abstract
Compressed gases such as nitrous oxide (N2O) are often used to obtain the cold temperatures needed for cryosurgery. Cryosurgical instruments which use compressed gas are designed to allow the gas to expand through a valve inside the metal tip of the cryosurgical probe, causing the tip to reach extremely low temperatures. If the exhaust gas from the probe is improperly vented, N2O concentrations in air can reach several thousand parts per million during a cryosurgical procedure; and depending on the room ventilation rate, levels may remain elevated for long periods of time following the procedure. Exposures should be minimized to prevent short-term behavioral and long-term reproductive health effects that can be caused by N2O. NIOSH studies have shown that airborne concentrations of N2O from cryosurgical units can be effectively controlled by ventilation and equipment maintenance, and if this is not possible, through substitution with a less hazardous cryogenic gas.
Keywords
Occupational-hazards; Nitrous-oxides; Gases; Environmental-control; Control-technology; Compressed-gases; Medical-equipment; Ventilation; Operating-rooms; Medical-personnel; Temperature-effects; Behavioral-patterns
CAS No.
10024-97-2
Publication Date
19990101
Document Type
Numbered Publication; Hazard Control
Fiscal Year
1999
NTIS Accession No.
NTIS Price
Identifying No.
(NIOSH) 99-105; HC-29
NIOSH Division
EID
Source Name
National Institute for Occupational Safety and Health
State
OH
TOP