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Question 61Question →

Match each clinical presentation to the most appropriate transmission-based or standard precaution category required for the client's care.

Click a left item, then click its matching right item

Items

A 6-year-old client presenting with a maculopapular rash and diagnosed with rubella (German measles).
A 10-year-old client presenting with Koplik spots and diagnosed with rubeola (measles).
A 45-year-old client admitted for treatment of a severe scabies infestation.
A 28-year-old client diagnosed with Lyme disease after a recent camping trip.

Matches

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Answer

Rubella requires Droplet Precautions; Rubeola requires Airborne Precautions; Scabies requires Contact Precautions; Lyme disease requires Standard Precautions.
The appropriate isolation category is determined by the specific pathogen's mode of transmission. Rubella spreads via large respiratory droplets (Droplet precautions). Rubeola spreads via small, aerosolized droplet nuclei that remain suspended in the air (Airborne precautions). Scabies is an infestation spread by direct skin-to-skin contact (Contact precautions). Lyme disease is transmitted by ticks and is not contagious from person to person (Standard precautions).

Step-by-Step Solution

1
Analyze the transmission route of rubella.
Identified as droplet transmission.
Determines the need for a surgical mask and private room.
2
Analyze the transmission route of rubeola.
Identified as airborne transmission.
Determines the need for a negative-pressure room and an N95 respirator.
3
Analyze the transmission route of scabies.
Identified as direct contact transmission.
Determines the need for a gown and gloves.
4
Analyze the transmission route of Lyme disease.
Identified as a vector-borne illness (tick bite) that is not transmitted person-to-person.
Determines that Standard precautions are sufficient for routine care.

Key Concept

Transmission-Based Precautions for Specific Pathogens
Question 62Question →

Match each clinical scenario with the most appropriate primary transmission-based or standard precaution category required for the client's safe care.

Click a left item, then click its matching right item

Items

A client admitted with severe coughing and a confirmed diagnosis of Mycoplasma pneumoniae.
A client with a draining surgical wound that has cultured positive for Vancomycin-resistant enterococcus (VRE).
A client presenting with a high fever, Koplik spots, and a confirmed diagnosis of Rubeola (measles).
A client with a history of chronic Hepatitis C admitted for a routine laparoscopic cholecystectomy.

Matches

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Answer

Mycoplasma pneumoniae matches with Droplet Precautions; VRE in a draining wound matches with Contact Precautions; Rubeola matches with Airborne Precautions; and Hepatitis C matches with Standard Precautions.
Each precaution category perfectly aligns with the pathogen's mode of transmission. Mycoplasma is droplet-based, VRE is contact-based, Measles is airborne, and Hepatitis C is a bloodborne illness requiring only standard safeguards during routine care.

Step-by-Step Solution

1
Analyze the transmission mode of Mycoplasma pneumoniae.
Identified as a pathogen transmitted via large respiratory droplets.
Large droplets do not remain suspended in the air, meaning Droplet Precautions (surgical mask) are appropriate.
2
Analyze the transmission mode of Vancomycin-resistant enterococcus (VRE) in a draining wound.
Identified as a multi-drug resistant organism transmitted by direct physical contact or contact with contaminated surfaces.
Direct contact with the client or their immediate environment requires Contact Precautions (gown and gloves).
3
Analyze the transmission mode of Rubeola (measles).
Identified as a pathogen transmitted via airborne aerosolized nuclei.
Aerosolized particles remain suspended in the air over long distances, requiring a negative-pressure room and an N95 respirator (Airborne Precautions).
4
Analyze the transmission mode of Hepatitis C.
Identified as a bloodborne pathogen.
Bloodborne pathogens are not transmitted through casual contact or respiratory droplets. Standard precautions apply for routine care.

Key Concept

Standard and Transmission-Based Precautions
Question 63Question →

Pair the following admitted clients and their diagnoses with the specific infection control precaution category required by current guidelines.

Click a left item, then click its matching right item

Items

A client with disseminated herpes zoster (shingles) across multiple dermatomes
A child experiencing paroxysmal coughing fits from confirmed Bordetella pertussis
A client with a draining sacral pressure injury colonized with vancomycin-resistant Enterococcus (VRE)
A client with advanced HIV admitted for treatment of Pneumocystis jirovecii pneumonia (PJP)

Matches

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Answer

Disseminated herpes zoster matches with Airborne and Contact Precautions. Bordetella pertussis matches with Droplet Precautions. VRE wound colonization matches with Contact Precautions. Pneumocystis jirovecii pneumonia (PJP) matches with Standard Precautions.
Each pathogen or clinical condition dictates specific isolation measures based on its primary mode of transmission. Disseminated herpes zoster can spread via aerosols and direct contact. Pertussis spreads through large respiratory droplets. VRE is a multidrug-resistant organism spread by direct contact with the patient or contaminated surfaces. PJP is an opportunistic infection that is not communicable between humans, meaning routine standard precautions are sufficient.

Step-by-Step Solution

1
Analyze the transmission route of disseminated herpes zoster.
Requires both airborne and contact isolation.
The virus can be aerosolized and transmitted via contact with vesicular fluid.
2
Identify the transmission route for Bordetella pertussis.
Requires droplet isolation.
The pathogen is expelled in large respiratory droplets during coughing paroxysms.
3
Determine the precautions for a VRE-colonized draining wound.
Requires contact isolation.
Multidrug-resistant organisms in wounds are easily spread via direct contact or fomites.
4
Evaluate the infectivity of Pneumocystis jirovecii.
Requires only standard precautions.
It is an environmental fungus that causes opportunistic infection in immunocompromised hosts, but does not spread from person to person.

Key Concept

Transmission-based precaution categorization based on pathogen spread mechanism
Question 64Question →

Match each client's clinical presentation to the appropriate transmission-based isolation precautions required for their care.

Click a left item, then click its matching right item

Items

A client presenting with coryza, Koplik spots, and a descending maculopapular rash.
A client experiencing multiple episodes of foul-smelling, watery diarrhea after broad-spectrum antibiotic therapy.
A client exhibiting severe, paroxysmal coughing episodes that end with a high-pitched inspiratory sound.
A client with an open surgical incision producing copious purulent drainage.

Matches

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Answer

Measles (coryza/Koplik spots) pairs with Airborne Precautions. Clostridioides difficile (watery diarrhea post-antibiotics) pairs with Contact Precautions (Enteric). Pertussis (paroxysmal coughing) pairs with Droplet Precautions. A draining surgical wound pairs with standard Contact Precautions.
Each clinical presentation is correctly matched to the specific transmission-based precaution required to prevent the spread of the suspected pathogen. Airborne is needed for measles, Contact (Enteric) for C. difficile, Droplet for pertussis, and standard Contact for a heavily draining wound.

Step-by-Step Solution

1
Identify the underlying infectious pathogen or condition described in each clinical presentation.
The presentations correspond to measles, C. difficile, pertussis, and a heavily draining wound.
Accurate pathogen identification is the prerequisite for determining the correct isolation category.
2
Determine the primary mode of transmission for each identified condition.
Measles is airborne; C. difficile is fecal-oral (spore-forming); pertussis is via respiratory droplets; draining wounds pose a direct contact risk.
Transmission-based precautions are specifically designed to interrupt the pathogen's primary route of spread.
3
Select the appropriate isolation category that mitigates the specific mode of transmission.
Measles requires Airborne, C. difficile requires Contact (Enteric), Pertussis requires Droplet, and the draining wound requires Contact.
Matching the transmission route to the CDC-recommended precautions ensures a safe care environment.

Key Concept

Selecting the correct transmission-based precautions requires identifying the pathogen's mode of transmission (airborne, droplet, or contact) and applying the appropriate barrier methods.
Question 65Question →

The charge nurse is reviewing bed assignments and infection control requirements for several newly admitted clients. Match each client's clinical presentation with the most appropriate isolation room assignment and required personal protective equipment (PPE).

Click a left item, then click its matching right item

Items

Client with a generalized maculopapular rash, high fever, and coryza, suspected of having rubeola.
Client with severe, spasmodic coughing episodes followed by a high-pitched inspiratory sound.
Client with profuse, foul-smelling diarrhea following a prolonged course of broad-spectrum antibiotics.
Client with an acute, highly contagious eruption of pruritic vesicular lesions on the face and trunk.

Matches

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Answer

Rubeola matches Airborne Precautions. Pertussis matches Droplet Precautions. C. difficile matches Contact (Enteric) Precautions. Varicella matches Airborne and Contact Precautions.
Each pathogen has specific transmission routes. Rubeola requires airborne precautions due to small droplet nuclei. Pertussis is spread through larger respiratory droplets requiring droplet precautions. Clostridioides difficile forms spores requiring contact precautions and specific handwashing with soap and water. Varicella is highly contagious via both air and direct contact, necessitating combined airborne and contact precautions.

Step-by-Step Solution

1
Identify the suspected pathogen or disease for each clinical presentation.
Left 1 is rubeola (measles); Left 2 is pertussis (whooping cough); Left 3 is Clostridioides difficile (C. diff); Left 4 is varicella (chickenpox).
Accurate recognition of the disease is required to determine the mode of transmission.
2
Determine the mode of transmission and corresponding precaution category for each identified disease.
Measles is airborne. Pertussis is droplet. C. diff is contact (spore-forming). Varicella is airborne and contact.
Transmission routes dictate the specific environmental controls and PPE needed to prevent healthcare-associated infections.
3
Match the precaution category to the specific room and PPE requirements listed on the right.
Measles requires a negative airflow room and N95. Pertussis requires a surgical mask. C. diff requires gown, gloves, and soap/water handwashing. Varicella requires negative airflow, N95, gown, and gloves.
Applying standard infection control guidelines ensures a safe healthcare environment for both staff and other clients.

Key Concept

Standard and Transmission-Based Precautions
Question 66Question →

Match each client's clinical presentation to the correct infection control precautions and room assignment requirement.

Click a left item, then click its matching right item

Items

Client with suspected pulmonary tuberculosis
Client diagnosed with Mycoplasma pneumoniae
Client with vancomycin-resistant enterococci (VRE) in a urine culture
Client with asymptomatic HIV and a closed radial fracture

Matches

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Answer

The correct matches align tuberculosis with Airborne Precautions (AIIR and N95), Mycoplasma pneumoniae with Droplet Precautions (private room and surgical mask), VRE with Contact Precautions (private room, gown, and gloves), and the closed fracture in an HIV-positive client with Standard Precautions.
Each client's clinical presentation dictates specific isolation requirements based on the pathogen's mode of transmission. Tuberculosis requires Airborne Precautions due to aerosolized droplet nuclei. Mycoplasma pneumoniae requires Droplet Precautions due to large respiratory droplets. VRE requires Contact Precautions to prevent transmission via direct contact. A closed fracture in a client with HIV requires only Standard Precautions, as there is no anticipated contact with blood or body fluids.

Step-by-Step Solution

1
Identify the mode of transmission for pulmonary tuberculosis.
Tuberculosis is transmitted via the airborne route.
Determines the need for an Airborne Infection Isolation Room (AIIR) and an N95 respirator.
2
Identify the mode of transmission for Mycoplasma pneumoniae.
It is transmitted via large respiratory droplets.
Determines the need for Droplet Precautions, requiring a surgical mask when within 3 feet of the client.
3
Identify the mode of transmission for VRE in urine.
VRE is transmitted by direct or indirect contact.
Determines the need for Contact Precautions, requiring a gown and gloves upon entering the room.
4
Assess the transmission risk for a client with HIV and a closed fracture.
No active bleeding or body fluid exposure is present.
Standard Precautions are sufficient unless exposure to blood or body fluids is anticipated.

Key Concept

Standard and Transmission-Based Precautions
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