CORRECT Answers
chain of infection process that allows microorganisms to spread from person-to-person
infectious agent bacteria, fungi, viruses, protozoa
reservoir where organisms grow (water & equipment)
portal of exit how pathogens leave (droplet, skin, secretions)
transmission how it spreads (direct contact, ingestion, airborne)
portal of entry how it enters (mucous membranes, gi tract, broken skin)
susceptible host person at risk for infection
at-risk patients immunosupressed, post-op, diabetic, copd, illness
medical asepsis clean technique to reduce microorganisms
surgical asepsis sterile technique to eliminate all microorganisms
standard precautions used for all patients, all the time
contact precautions gown + gloves, direct/indirect contact
droplet precautions surgical mask, spreads 3-6ft
airborne precautions n95 + negative pressure room
donning ppe order hand hygiene, gown, mask, eyewear, gloves
doffing ppe order gloves, hand hygiene, goggles, gown, mask
soiled linen care do not shake; place directly in leak-proof container
, heart layers pericardium, myocardium, epicardium
heart chambers atria & ventricles
major vessels svc, ivc, pulmonary artery, aorta
heart valves atrioventricular & semilunar
cardiac cycle systole & diastole
carotid normal +2 amplitude, 60-100bpm, symmetric