A client with tuberculosis sneezes in the waiting room and infects several other clients who are sitting on the other side of the room. Which mechanism of transmission is involved in this case?
A) Airborne
B) Droplet
C) Direct contact
D) Indirect contact
Ans: A
Feedback:
Airborne transmission occurs when microorganisms are carried in the air in small particles, called droplet nuclei, at distances that exceed a few feet. Droplet transmission theoretically is a form of contact transmission; the mechanism of transfer of the pathogen to the host is quite distinct from either direct or indirect transmission. Therefore, droplet transmission is considered a separate route of transmission. Droplets are generated from the source person primarily during coughing, sneezing, or talking and are propelled a short distance (<3 feet) through the air and deposited on the conjunctivae, nasal mucosa, or mouth of another person. Direct contact occurs through direct body surface–to–body surface contact and physical transfer of microorganisms between a susceptible host and an infected or colonized person (or animal). Indirect contact involves contact of a susceptible host with a contaminated intermediate inanimate object, called a vehicle, such as a contaminated surgical instrument, needle, toy, soiled clothing, or bed linen.
You might also like to view...
During the second stage of labor, the nurse should monitor the fetal heart rate every:
a. 5 minutes. b. 10 minutes. c. 15 minutes. d. 20 minutes.
The nurse is finalizing a plan of care for a school-age client newly diagnosed with type 1 diabetes mellitus. On which areas should the plan focus to achieve the maximum outcomes for this client?
Select all that apply. A) Ways to minimize the number of school days missed B) Identification and referral to community resources C) Physical activities that limit exposure to injuries D) Self-management of glucose monitoring and medications E) Signs and symptoms of hypoglycemia and actions to take
The dose on hand is found on which of the following documents?
A. Medication Administration Record B. drug label C. medication card D. prescription
The nurse is seeing prenatal clients in the clinic. Which client is exhibiting expected findings?
1. Primipara at 26 weeks with fundal height of 30 cm 2. Multipara at 12 weeks who reports bright red vaginal bleeding 3. Multipara at 22 weeks who reports no fetal movement felt yet 4. Primipara at 12 weeks with fetal heart tones heard by Doppler fetoscope