Hygiene Sanitation
Hygiene Sanitation - Related Videos
01:23
Hand hygiene
0 Views •
2023
Asepsis is the practice of preventing or breaking the chain of infection. The nurse employs aseptic techniques to prevent the spread of microorganisms and reduce the risk of diseases. Hand hygiene is the cornerstone of aseptic techniques and is classified into medical and surgical asepsis. Medical asepsis includes hand hygiene and the use of gloves. Surgical asepsis, or the sterile technique, refers to practices that render and keep objects and areas free of microorganisms. Hand washing...
01:48
COVID-19 / Coronavirus Outbreak: Guidance for Hand Hygiene for Healthcare Providers to Ensure a Safe and Healthy Environment
0 Views •
2020
Handwashing is an easy and simple way for healthcare providers to ensure a safe and healthy environment for both the healthcare provider and the patient. The following steps should be followed before and after patient contact. Wet your hands with lukewarm water.
11:56
Central Venous Access Device Dressing Change
0 Views •
2023
Source: Madeline Lassche, MSNEd, RN and Katie Baraki, MSN, RN, College of Nursing, University of Utah, UT Central venous access devices (CVAD), commonly known as central lines or central catheters, are large-bore intravenous (IV) catheters that are introduced into the central circulation. Typically, CVADs terminate in the superior vena cava, just outside of the right atrium of the heart, but they may also terminate in any one of the great veins (i.e., aorta, inferior vena cava, brachiocephalic...
05:09
Diffuse Correlation Spectroscopy to Measure Cerebral Blood Flow in a Human Subject
0 Views •
2025
Source: Menezes Forti, R. et al. Real-Time Monitoring of Neurocritical Patients with Diffuse Optical Spectroscopies. J. Vis. Exp. (2020)This video demonstrates the use of Diffuse Correlation Spectroscopy (DCS) to measure cerebral blood flow in humans. It outlines the steps for preparing the system, calibrating the probe, positioning it on the participant’s forehead, acquiring scattered light data, and analyzing intensity fluctuations to interpret blood flow dynamics in the brain.
11:39
Peripheral Intravenous Catheter Insertion
0 Views •
2023
Source: Madeline Lassche, MSNEd, RN and Katie Baraki, MSN, RN, College of Nursing, University of Utah, UT The purpose of peripheral intravenous catheter (PIV) insertion is to infuse medications, perform intravenous (IV) fluid therapy, or inject radioactive tracers for special examination procedures. Placing a PIV is an invasive procedure and requires the use of an aseptic, no-touch technique. Common IV venipuncture sites are the arms and hands in adults and the feet in children. According to...
FAQs
These measures interrupt transmission at different points rather than relying on one barrier. Handwashing, cleaning, and disinfection reduce or inactivate microorganisms on people and surfaces, while safe management of water and fecal waste removes contamination sources. Together, they can limit fecal-oral spread, contact transmission, and exposure created when pathogens move through shared environments.
Source control addresses contamination before it reaches people, food, water, or frequently touched surfaces. Managing fecal waste and unsafe water is therefore different from cleaning an already contaminated object: it reduces opportunities for pathogens to enter the environment and circulate. This distinction helps explain why sanitation complements personal hygiene in reducing infection risk.
Environmental conditions influence how readily pathogens encounter new hosts and how widely contamination can spread. In biology, examining water quality, waste management, surface cleanliness, and patterns of personal contact helps connect local conditions with population-level infection risk. This perspective shifts attention from individual behavior alone to the routes and settings that sustain transmission.
Removal and inactivation reduce exposure through complementary mechanisms. Cleaning and handwashing can remove microorganisms, whereas disinfection is directed toward inactivating them; barriers further limit contact between contamination and a potential host. Considering these actions together helps researchers and practitioners identify which intervention interrupts a particular transmission route and where additional control is needed.
An effective approach begins by identifying where contamination can arise and how it can reach people. Attention then turns to relevant controls, such as handwashing, cleaning, disinfection, safe water, fecal-waste management, and barriers to personal contact. Linking each control to a transmission pathway makes the process analytically useful for disease prevention, biosafety, and food and water safety.
Researchers apply these principles when studying pathogen movement, infection risk, or contamination in populations and environments. The same framework supports laboratory biosafety, food safety, water safety, and disease-prevention work. Its value lies in connecting an observed control measure, such as surface disinfection or waste management, with the transmission pathway or exposure it is intended to interrupt.
Outcomes are interpreted in terms of reduced exposure and interrupted transmission pathways rather than cleanliness alone. Investigators can use the framework to relate controls to fecal-oral or contact transmission, assess how environmental conditions shape risk, and organize disease-prevention strategies. It also provides a biological basis for comparing personal barriers with controls directed at contamination sources.