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What is the primary goal when addressing the chain of infection?
a. Break the chain at any point
b. Wash hands only
c. Isolate all patients
d. Administer antibiotics prophylactically
✔️ Correct Answer: A
Rationale:
The primary goal in infection control is to break the chain of infection at
any point to prevent the transmission of infectious agents. The chain
consists of six elements: infectious agent, reservoir, portal of exit, mode
of transmission, portal of entry, and susceptible host. Breaking any link
in this chain prevents infection transmission. While hand washing is a
critical component (Option B), it is only one method of breaking the
chain. Isolation (Option C) and prophylactic antibiotics (Option D) are
not universally indicated or appropriate for all situations.
How do healthcare-associated infections (HAIs) most commonly
spread?
a. Inadequate hand hygiene and contaminated equipment
b. Airborne transmission only
,c. Direct patient-to-patient contact
d. Foodborne transmission
✔️ Correct Answer: A
Rationale:
Healthcare-associated infections most commonly spread through
inadequate hand hygiene practices and contaminated equipment.
Healthcare providers' hands are the most common vehicle for
transmission of pathogens between patients. Proper hand hygiene
before and after patient contact, as well as appropriate cleaning and
disinfection of equipment, are essential for preventing HAIs. Options B,
C, and D represent less common transmission routes for HAIs.
Which personal protective equipment (PPE) is required for Contact
Precautions?
a. Gloves and gown
b. Mask, gloves, and gown
c. N-95 respirator
d. Gloves only
✔️ Correct Answer: A
Rationale:
Contact Precautions require gloves and a gown to prevent transmission
of infectious agents through direct or indirect contact. A mask (Option
B) is required for Droplet Precautions, not Contact Precautions. An N-95
respirator (Option C) is required for Airborne Precautions. Gloves only
(Option D) is insufficient for Contact Precautions; a gown is also
required to protect clothing and skin.
,Which infections require Contact Precautions?
a. VRE, MRSA, and C. difficile
b. Influenza and meningitis
c. Tuberculosis and measles
d. Pneumonia and sepsis
✔️ Correct Answer: A
Rationale:
Vancomycin-resistant enterococcus (VRE), methicillin-resistant
Staphylococcus aureus (MRSA), and Clostridium difficile (C. diff) require
Contact Precautions. These pathogens are transmitted through direct or
indirect contact with the patient or contaminated environment.
Influenza and meningitis (Option B) require Droplet Precautions.
Tuberculosis and measles (Option C) require Airborne Precautions.
Pneumonia and sepsis (Option D) may require various precautions
depending on the causative organism.
What precautions are required for Airborne transmission?
a. N-95 respirator and negative pressure room
b. Standard precautions only
c. Mask and gown
d. Gloves and gown
✔️ Correct Answer: A
Rationale:
Airborne Precautions require an N-95 respirator (or higher level) and a
negative pressure room. These precautions are necessary for pathogens
that remain suspended in the air for long periods, such as tuberculosis,
measles, and varicella. Standard precautions only (Option B) are
insufficient. Mask and gown (Option C) are used for Droplet
, Precautions. Gloves and gown (Option D) are used for Contact
Precautions.
What are the correct guidelines for restraint use?
a. Check circulation every 30 minutes, release every 2 hours, obtain a
provider's order first, renew order every 24 hours
b. Check circulation every hour, release every 4 hours, obtain verbal
order only
c. Check circulation every 15 minutes, release every hour, renew order
every 12 hours
d. Check circulation every 2 hours, release every shift, no order
required
✔️ Correct Answer: A
Rationale:
Restraint guidelines require: checking circulation every 30 minutes,
releasing the restraint every 2 hours for range of motion and skin
assessment, obtaining a provider's order before application (or within
15 minutes of emergency application), and renewing the provider's
order every 24 hours. Options B, C, and D do not meet the established
safety standards for restraint use.
What is the best approach to help a patient experiencing anxiety?
a. Sit with the patient, listen, and use therapeutic communication
b. Administer sedative medication immediately
c. Leave the patient alone to calm down
d. Distract the patient with television