Clinical skills with sample possible questions
and correct answer
Infection Control
Chain of Infection
Infectious Agent: Refers to the pathogen causing the infection, which can be a bacterium,
virus, parasite, or fungus. Understanding the type of infectious agent is crucial for diagnosis
and treatment.
Source: The origin of the infection can be an animal, insect, inanimate object, or human
being. Identifying the source helps in controlling the spread of infection.
Portal of Exit: Pathways through which the infectious agent leaves the host, including the
respiratory tract, gastrointestinal (GI) tract, genitourinary (GU) tract, blood, and skin/mucosal
surfaces.
Mode of Transmission: The method by which the infectious agent is transmitted to another
host, which can be through contact, airborne, vehicle, droplet, or vector-borne routes.
Portal of Entry: The route through which the infectious agent enters a new host, such as the
GI tract, GU tract, non-intact skin, respiratory tract, or mucous membranes.
Susceptible Host: Individuals who are more likely to contract the infection due to factors like
immunosuppression, trauma, surgery, chronic illness, or being elderly.
Isolation Precautions and Protocols
Isolation Definition: The practice of separating and restricting the movement of individuals
with contagious diseases to prevent the spread of infection.
Isolation Environment: Key components include a private room, signage indicating
precautions, an adjoining anteroom for hand hygiene, and proper disposal systems for
contaminated materials.
Hand Hygiene: Essential before entering and leaving the patient’s room to minimize the risk
of infection transmission.
Transport Protocols: Protect individuals who may be exposed during the transport of
patients outside isolation rooms, ensuring proper PPE is worn.
Types of Precautions: Understanding contact, droplet, and airborne precautions is vital for
infection control, with specific barriers and protocols for each type.
Disease Processes Related to Isolation
Contact Precautions: Required for organisms transmitted through contact with infectious
secretions, such as MRSA and VRE. Barriers include gowns, gloves, and dedicated equipment.
Droplet Precautions: Necessary when infectious droplets are expelled during coughing or
sneezing, affecting those within three feet. Examples include COVID-19 and influenza.
Airborne Precautions: For diseases like tuberculosis, where pathogens can remain
suspended in the air. Requires negative airflow rooms and N95 respirators.
PPE Application: Proper sequence for donning (gown, mask, goggles, gloves) and doffing
(gloves, goggles, gown, mask) PPE is critical to prevent contamination.
Contamination Risks: Understanding how sterile fields can become contaminated through
contact with non-sterile surfaces or prolonged exposure to air.
, Concepts of Sterility
Principles of Sterile Technique
Sterile Object Handling: A sterile object remains sterile only when in contact with another
sterile object. This principle is fundamental in surgical settings.
Sterile Field Maintenance: Only sterile objects should be placed on a sterile field, and any
object out of sight or below the waist is considered contaminated.
Contamination Factors: Prolonged exposure to air or contact with wet surfaces can
contaminate sterile fields due to capillary action.
Gravity's Role: Fluid flows in the direction of gravity, which is important when managing
sterile fields and equipment.
Edge Contamination: The edges of sterile containers or fields are always considered
contaminated.
Vital Signs
Normal Vital Sign Parameters
Temperature: Normal oral temperature ranges from 96.3-99.3°F (35.7-37.4°C). Variations
include axillary (lower) and rectal (higher) measurements.
Pulse: Normal adult pulse ranges from 60-100 bpm. Tachycardia is defined as a pulse above
100 bpm, while bradycardia is below 60 bpm.
Respirations: Normal respiratory rate is 12-20 breaths per minute. Monitoring includes
assessing depth and rhythm.
Blood Pressure: Normal adult BP is 120/80 mmHg. Elevated BP is classified as systolic 120-
129 and diastolic less than 80.
Pain Assessment: Utilizes the Likert scale (1-10) and Wong-Baker Faces to evaluate pain
intensity.
Protocol for Performing Vital Signs
Temperature Measurement: Use appropriate methods (oral, axillary, rectal) and understand
the normal ranges for each.
Pulse Assessment: Count the pulse for 30 seconds and multiply by two, or count for a full
minute if irregular. Locations include radial, brachial, and carotid arteries.
Respiration Counting: Observe the patient’s chest for 30 seconds and multiply by two,
ensuring to assess rhythm and depth.
Blood Pressure Measurement: Follow a two-step process, ensuring proper cuff size and
placement over the brachial artery, inflating to 30 mmHg above normal BP.
Orthostatic Hypotension: Assess BP in lying, sitting, and standing positions to evaluate for
symptoms of low BP upon standing.
Patient Assessment
and correct answer
Infection Control
Chain of Infection
Infectious Agent: Refers to the pathogen causing the infection, which can be a bacterium,
virus, parasite, or fungus. Understanding the type of infectious agent is crucial for diagnosis
and treatment.
Source: The origin of the infection can be an animal, insect, inanimate object, or human
being. Identifying the source helps in controlling the spread of infection.
Portal of Exit: Pathways through which the infectious agent leaves the host, including the
respiratory tract, gastrointestinal (GI) tract, genitourinary (GU) tract, blood, and skin/mucosal
surfaces.
Mode of Transmission: The method by which the infectious agent is transmitted to another
host, which can be through contact, airborne, vehicle, droplet, or vector-borne routes.
Portal of Entry: The route through which the infectious agent enters a new host, such as the
GI tract, GU tract, non-intact skin, respiratory tract, or mucous membranes.
Susceptible Host: Individuals who are more likely to contract the infection due to factors like
immunosuppression, trauma, surgery, chronic illness, or being elderly.
Isolation Precautions and Protocols
Isolation Definition: The practice of separating and restricting the movement of individuals
with contagious diseases to prevent the spread of infection.
Isolation Environment: Key components include a private room, signage indicating
precautions, an adjoining anteroom for hand hygiene, and proper disposal systems for
contaminated materials.
Hand Hygiene: Essential before entering and leaving the patient’s room to minimize the risk
of infection transmission.
Transport Protocols: Protect individuals who may be exposed during the transport of
patients outside isolation rooms, ensuring proper PPE is worn.
Types of Precautions: Understanding contact, droplet, and airborne precautions is vital for
infection control, with specific barriers and protocols for each type.
Disease Processes Related to Isolation
Contact Precautions: Required for organisms transmitted through contact with infectious
secretions, such as MRSA and VRE. Barriers include gowns, gloves, and dedicated equipment.
Droplet Precautions: Necessary when infectious droplets are expelled during coughing or
sneezing, affecting those within three feet. Examples include COVID-19 and influenza.
Airborne Precautions: For diseases like tuberculosis, where pathogens can remain
suspended in the air. Requires negative airflow rooms and N95 respirators.
PPE Application: Proper sequence for donning (gown, mask, goggles, gloves) and doffing
(gloves, goggles, gown, mask) PPE is critical to prevent contamination.
Contamination Risks: Understanding how sterile fields can become contaminated through
contact with non-sterile surfaces or prolonged exposure to air.
, Concepts of Sterility
Principles of Sterile Technique
Sterile Object Handling: A sterile object remains sterile only when in contact with another
sterile object. This principle is fundamental in surgical settings.
Sterile Field Maintenance: Only sterile objects should be placed on a sterile field, and any
object out of sight or below the waist is considered contaminated.
Contamination Factors: Prolonged exposure to air or contact with wet surfaces can
contaminate sterile fields due to capillary action.
Gravity's Role: Fluid flows in the direction of gravity, which is important when managing
sterile fields and equipment.
Edge Contamination: The edges of sterile containers or fields are always considered
contaminated.
Vital Signs
Normal Vital Sign Parameters
Temperature: Normal oral temperature ranges from 96.3-99.3°F (35.7-37.4°C). Variations
include axillary (lower) and rectal (higher) measurements.
Pulse: Normal adult pulse ranges from 60-100 bpm. Tachycardia is defined as a pulse above
100 bpm, while bradycardia is below 60 bpm.
Respirations: Normal respiratory rate is 12-20 breaths per minute. Monitoring includes
assessing depth and rhythm.
Blood Pressure: Normal adult BP is 120/80 mmHg. Elevated BP is classified as systolic 120-
129 and diastolic less than 80.
Pain Assessment: Utilizes the Likert scale (1-10) and Wong-Baker Faces to evaluate pain
intensity.
Protocol for Performing Vital Signs
Temperature Measurement: Use appropriate methods (oral, axillary, rectal) and understand
the normal ranges for each.
Pulse Assessment: Count the pulse for 30 seconds and multiply by two, or count for a full
minute if irregular. Locations include radial, brachial, and carotid arteries.
Respiration Counting: Observe the patient’s chest for 30 seconds and multiply by two,
ensuring to assess rhythm and depth.
Blood Pressure Measurement: Follow a two-step process, ensuring proper cuff size and
placement over the brachial artery, inflating to 30 mmHg above normal BP.
Orthostatic Hypotension: Assess BP in lying, sitting, and standing positions to evaluate for
symptoms of low BP upon standing.
Patient Assessment
