Question

question 17 (1 point) saved
pharyngitis is
an inflammation of the inner ear.
an infection of the lower respiratory tract.
the production of a membrane over the throat.
an inflammation of the throat.
question 18 (1 point) saved
respiratory syncytial virus (rsv)
manifests as a cold in older children and adults.
shows symptoms of croup.
can be prevented by passive antibody therapy.
all of the above.
question 19 (1 point) saved
a \false negative\ test is one which
detects presence of an organism when the organism in question is not there.
does not detect an organism when the organism is present.
may detect a related species rather than the organism of interest.
a and c are correct

Explanation:

Question 17

Pharyngitis is defined as inflammation of the throat (pharynx). The first option is incorrect (inner ear inflammation is otitis), the second is incorrect (lower respiratory tract infections are different), the third is incorrect (membrane over throat is more like diphtheria), so the correct one is the last option.

RSV in older children/adults can present like a cold, can cause croup - like symptoms, and passive antibody therapy (e.g., palivizumab) can be used for prevention in high - risk groups. So all the above statements are correct.

A false - negative test is when the test fails to detect the presence of an organism that is actually present. The first option is a false - positive, the third is a cross - reaction, so the second option is correct.

Answer:

an inflammation of the throat.

Question 18