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Aims and Objective: To study the comparison of oxygen saturation values in supine and sitting position above 60 year old patients. Background: Changes in posture affect ventilation-perfusion rates, O2 transport and lungs volume in normal lungs. Study Design: An observational study. Methods: A preoperative observational study was conducted after the clearance from institutional ethical committee on 60 patients in department of Anaesthesiology, M.M.I.M.S.R, Mullana, Ambala Haryana, India. A sample of 60 elderly individuals with no heart disease, bleeding disorder, pain or anemia was included in the research. Individuals were positioned in two positions-supine and sitting. Oxygen saturation and pulse rates were then measured and recorded after the individuals held each position for ten minutes. Results: It was found that the average SpO2 value when measured while sitting in a chair was significantly higher than that measured when the individual was in supine body position. Hence, elderly patients, especially who have diminished cardio respiratory reserve, should be preferably made to sit rather than put in supine position for better vitals. Conclusion: This study was conducted to analyze differences in hemodynamics viz-a-viz oxygen saturation levels, pulse rate between supine and sitting position. It was found that saturation levels were higher in patients made to sit rather than those in supine position. [ABSTRACT FROM AUTHOR]

Background: Tight-fitting respirators are a critical component of respiratory protection against airborne diseases for health workers. However, they are not recommended for health workers with facial hair. Some health workers are unable to shave for religious or medical reasons. Under-mask beard covers have been proposed as a solution to allow health workers with facial hair to wear tight-fitting respirators. However, studies to date have been limited by their predominant reliance on qualitative rather than quantitative fit testing techniques., Aim: To assess the efficacy of under-mask beard covers in achieving an adequate seal with tight-fitting disposable P2/N95 respirators using quantitative fit testing., Methods: Bearded adult males underwent quantitative fit testing with an under-mask beard cover using either a TSI PortaCount Respirator Fit Tester 8038 or an AccuFit 9000 PRO fit testing device on up to five disposable P2/N95 respirators (3M 1860, 3M 1870+, BYD N95 Healthcare Particulate Respirator, BSN Medical ProShield N-95 Medium and Trident RTCFFP2). The primary outcome was the proportion of subjects that passed or failed quantitative fit testing with an under-mask beard cover., Findings: Thirty subjects were assessed; of these, 24 (80%) passed quantitative fit testing with at least one tight-fitting P2/N95 disposable respirator. Among these subjects, the median best-achieved fit factor was 200 (interquartile range 178-200). None of the subjects had an adverse reaction to the under-mask beard cover., Conclusion: The under-mask beard cover technique may be used to achieve a satisfactory seal with tight-fitting P2/N95 respirators in health workers with facial hair who cannot shave., (Crown Copyright © 2022. Published by Elsevier Ltd. All rights reserved.)