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Classifying Indoor Air Problems: What Can Go Wrong?
Published in H.E. Burroughs, Shirley J. Hansen, Managing Indoor Air Quality, 2020
H.E. Burroughs, Shirley J. Hansen
Table 3-1 summarizes health symptoms and associated SBS and BRI illnesses. The table is particularly useful in identifying which illness is the only one to exhibit a certain symptom, or only illness that does not exhibit that symptom. This helps with the sorting process. For example, eye irritation is only identified with SBS; not BRIs. Humidifier fever is the only illness to exhibit lethargy but not general malaise. Malaise is a vague feeling of uneasiness or physical discomfort. Lethargy is characterized by abnormal drowsiness or torpor, apathy, sluggishness and great lack of energy. When a building associated illness is suspected, then, abnormal drowsiness without any feelings of physical uneasiness would suggest humidifier fever. If these symptoms are accompanied by the “Monday Morning Phenomena,” the possibility of humidifier fever is even greater.
Syncope: Physiology, Pathophysiology and Aeromedical Implications
Published in Anthony N. Nicholson, The Neurosciences and the Practice of Aviation Medicine, 2017
David A. Low, Christopher J. Mathias
There are number of symptoms that occur before syncope given that it is a neurally mediated event. These may include sweating, pallor, hyperventilation, nausea and feelings of ‘dizziness’. These may be in addition to the symptoms mainly resulting from a fall in blood pressure and diminsihed organ perfusion, as described below in patients with ortostatic hypotension (Figure 13.7). Cerebral hypoperfusion – Dizziness– Visual disturbances Blurred – tunnelScotoma (partially diminished visual acuity)Greying/blacking outColour defects– Cognitive deficitsMuscle hypoperfusion – Paracervical and suboccipital (‘coat-hanger’) ache– Lower back/buttock acheSubclavian steal-like syndromeRenal hypoperfusion – Oliguria (decreased urine output)Spinal cord hypoperfusionNon-specific – Weakness, lethargy, fatigue
Developing a fatigue questionnaire for Chinese civil aviation pilots
Published in International Journal of Occupational Safety and Ergonomics, 2020
Jing Dai, Min Luo, Wendong Hu, Jin Ma, Zhihong Wen
The fourth factor is subjective fatigue. After considering the influence of the previous three factors, organizations should also monitor the frequency with which pilots exhibit fatigue-related symptoms before their regular flight missions, regardless of sleep opportunity and actual sleep obtained. If pilots appear to be exhibiting fatigue-related symptoms, their ability to perform high-risk tasks should be examined by an appropriate manager [37]. These symptoms mainly include three aspects: physical symptoms (e.g., yawning, heavy eyelids, eye-rubbing), mental symptoms (e.g., difficulty concentrating on the current work task, lapses in attention, difficulty remembering what you are meant to be doing) and emotional symptoms (e.g., more quiet or withdrawn than normal, lethargic or lacking in energy, irritable or bad tempered with colleagues, family or friends).