Physiological effects of shift work on hospital nurses

Area of Science:

• Occupational Health
• Endocrinology
• Physiology

Background:

• Shift work is prevalent in healthcare, potentially disrupting circadian rhythms and physiological markers.
• Understanding the impact of shift work on nurses' well-being is crucial for developing supportive work environments.

Purpose of the Study:

• To investigate the physiological effects of shift work on hospital nurses.
• To analyze urinary excretion rates of norepinephrine, 6-sulfatoxymelatonin, and estriol in relation to work shifts.

Main Methods:

• Collected 24-hour urine specimens from pregnant and non-pregnant nurses during day shifts, night shifts, and days off.
• Quantified urinary norepinephrine and 6-sulfatoxymelatonin using enzyme-linked immunosorbent assay.
• Measured urinary estriol levels via radio-immunoassay.

Main Results:

• Urinary norepinephrine levels were elevated during night shifts compared to days off and day shifts.
• Urinary 6-sulfatoxymelatonin levels were decreased during night shifts compared to days off and day shifts.
• No significant differences in urinary estriol levels were observed among work shifts or between day and night in pregnant subjects.

Conclusions:

• Shift work demonstrably affects urinary excretion rates of norepinephrine and 6-sulfatoxymelatonin in both pregnant and non-pregnant nurses.
• Urinary estriol levels in pregnant nurses appear to be resilient to the effects of shift work.