Occupational exposure of midwives to nitrous oxide on delivery suites

Henderson, K. A.; Matthews, I. P.; Adisesh, A.; Hutchings, A. D.
December 2003
Occupational & Environmental Medicine;Dec2003, Vol. 60 Issue 12, p958
Academic Journal
Aims: To compare environmental and biological monitoring of midwives for nitrous oxide in a delivery suite environment. Methods: Environmental samples were taken over a period of four hours using passive diffusion tubes. Urine measurements were taken at the start of the shift and after four hours. Results: Environmental levels exceeded the legal occupational exposure standards for nitrous oxide (100 ppm over an 8 hour time weighted average) in 35 of 46 midwife shifts monitored. There was a high correlation between personal environmental concentrations and biological uptake of nitrous oxide for those midwives with no body burden of nitrous oxide at the start of a shift, but not for others. Conclusions: Greater engineering control measures are needed to reduce daily exposure to midwives to below the occupational exposure standard. Further investigation of the toxicokinetics of nitrous oxide is needed.


Related Articles

  • Exposure of midwives to nitrous oxide in four hospitals. Munley, A.J.; Railton, R.; Gray, W.M.; Carter, K.B. // British Medical Journal (Clinical Research Edition);10/25/1986, Vol. 293 Issue 6554, p1063 

    Examines the exposures of midwives to nitrous oxide in four hospitals with personal samples. Measurement of nitrous oxide exposure; Considerations on the differences of exposures; Susceptibility of midwives and other working staff on the excessive occupational exposure to nitrous oxide.

  • Homemade Nitrous Oxide: No Laughing Matter. Messina, Frank V.; Wynne, James W. // Annals of Internal Medicine;Mar1982, Vol. 96 Issue 3, p333 

    Presents the case of a patient who had acute pulmonary toxicity after inhaling homemade nitrous oxide containing high levels of nitrogen dioxide. Chief complaint of the patient when admitted to the hospital; Results of the physical examination; Treatment rendered.

  • GP Business: In practice with ... Dr Sally Russell, Deal, Kent. Andalo, Debbie // GP: General Practitioner;8/30/2004, p28 

    This article presents an interview with Doctor Sally Russell, a general practitioner in deal. Kent. On the question how she started general practice, she says that she started it by accident. She was doing a care of the elderly job and a colleague was talking about a GP VTS. So she went along...

  • Is routine blood test of value for evaluating health effects among midwives working with nitrous oxide for pain relief in delivery unit. Abascall, Gudrun; Johansson, Maud; Jakobsson, Jan // Health (1949-4998);Mar2011, Vol. 3 Issue 3, p162 

    Chronic workplace exposure to high nitrous oxide concentrations has been suggested to potentially be associated to negative health effects caused by the interference with the vitamin B12, methionine synthase pathway. The objective of the present study was to determine if delivery unit work place...

  • Shift work, nitrous oxide exposure, and spontaneous abortion among Swedish midwives Bodin, Lennart; Axelsson, Gosta; Ahlborg, Jr., Gunnar // Occupational & Environmental Medicine;Jun1996, Vol. 53 Issue 6, p374 

    No abstract available.

  • Is nitrous oxide a genotoxic carcinogen? O'Donovan, Michael R.; Hammond, Timothy G. // Mutagenesis;Jul2015, Vol. 30 Issue 4, p459 

    Nitrous oxide (N2O) has been widely used as a dental and surgical anaesthetic for over 150 years. However, results from a recent study suggested that increased DNA damage was seen in lymphocytes from surgical patients and this led to its continued clinical use to be questioned. The data can be...

  • Nitrous oxide intoxication and various other toxicities: case report.  // Reactions Weekly;10/22/2016, Vol. 1624 Issue 1, p38 

    The article presents a case study of a 20-year-old woman developed toxic encephalopathy with subacute combined degeneration of the spinal cord, peripheral nerve disease, dystonia and dystaxia following nitrous oxide intoxication.

  • Midwifery Practice Awards 2006.  // British Journal of Midwifery;Sep2006, Vol. 14 Issue 9, p546 

    The article offers information on the call for nominations for the 2006 Midwifery Practice Awards offered by the British Journal of Midwifery (BJM) which aim is to highlight and reward excellence in evidence-based midwifery. It also presents the awards categories such as the Community Midwife of...

  • Questions & Answers.  // Nurse Prescribing;Mar2007, Vol. 5 Issue 2, p61 

    The article offers information on the inquiry related to the eligibility of a nurse in prescribing Botox to its clients. The author stresses that nurses and midwives are eligible in prescribing Botox if they already undergone training and registered as a Nurse Independent/Supplementary...


Read the Article


Sign out of this library

Other Topics