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BSNC 2000 Module 1 Questions with Correct Answers

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BSNC 2000 Module 1 Questions with Correct Answers How can we control MO levels? - Answer-- Hand hygiene - Aseptic techniques - Disinfection/Sterilization - Antimicrobials - Vaccination 3 Components of Epidemiological Triangle - Answer-1. Infectious Agent 2. Susceptible Host 3. Environment...

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  • August 15, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • BSNC 2000
  • BSNC 2000
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BSNC 2000 Module 1 Questions with
Correct Answers

How can we control MO levels? - Answer-- Hand hygiene
- Aseptic techniques
- Disinfection/Sterilization
- Antimicrobials
- Vaccination

3 Components of Epidemiological Triangle - Answer-1. Infectious Agent
2. Susceptible Host
3. Environment

Host - Answer-- Living object
- Allows sustained survival and transmission of the agent
- Susceptible to the agent which may or may not cause disease in the host

Reservoir - Answer-- Living or non-living object
- Allows sustained survival and transmission of the agent

Can a host also be a reservoir? - Answer-Yes

Examples of MO reservoirs in hospital - Answer-- Patients (gowns/PJs, robes)
- Bed (sheets/blankets/etc.)
- Devices (dressings/tables/tools)
- Garments (scrubs/lab coats)
- Environment (carpet/curtains/toilets)

Route of Transmission - Portal of Exit & Entry - Answer-Area of the body or body
substances through which infectious agents leave and enter the body

Direct Transmission + Examples - Answer-Reservoir to Host
- Direct Contact
- Droplet
- Vertical (Mom to Fetus)
- Direct Implantation/Inoculation (through skin)

Indirect Transmission + Examples - Answer-Reservoir to Intermediary to Host
- Airborne
- Vectors (alive)
- Fomites (catheter)

, - Vehicles (food/water)

Direct Contact - Answer-- Close or direct contact with a reservoir (kissing/sex/etc)
- Direct exposure to an agent and/or contact with body fluids

Droplet Transmission - Answer-- Produced by coughing, sneezing, flushing toilet
- Larger than droplet nuclei (5-10um or larger)
- Distance travelled within 1 meter

Airborne Transmission - Answer-- Droplet nuclei/aerosols
- Smaller droplets (less than 5-10um)
- Can stay suspended in air for extensive period of time
- Infectious agents can remain viable and infectious in suspension

Face Masks - Answer-- Loose fitting
- Not designed to filter out small aerosols
- Place on coughing patient (source control)
- Protect pt during procedures (surgery)
- Droplet precautions

n95 Respirator - Answer-- Tight fitting
- Filters air
- Protects the wearer
- Airborne precautions

Contact Precautions - Answer-- Private room is preferred
- PPE: Gown + gloves
- Ex. MRSA, C. diff, lice

Droplet Precautions - Answer-- Private room is preferred (otherwise draw curtains)
- PPE: Gown + gloves + face mask + goggles
- Ex. Meningitis, mumps, influenza

What are the 3 domains of MOs? - Answer-- Archaea (Prokaryote aka no nucleus)
- Bacteria (Prokaryote)
- Eukarya (Eukaryote aka has a nucleus)

What are the Prokaryotic MOs? - Answer-- Bacteria - unicellular
- Archaea - unicellular

What are the Eukaryotic MOs? - Answer-- Protists ( Algae; Protozoa) - unicellular
- Fungi (Yeast - unicellular; Mold - multicellular)
- Helminths - multicellular
- Viruses - acellular

Describe the unique nature of MOs - Answer-- Live everywhere

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