ANSWERS RATED 100% CORRECT .
Influenza - correct Answers -a highly contagious upper respiratory viral infection
Flu season - correct Answers -September to April; peaks Nov-March
Influenza viruses serotypes - correct Answers -Type A, B, & C; each has a slightly different
genome and surface proteins
Hemagglutin (H) & neuramindase (N) - correct Answers -Antigens present on influenza virus; H
allows the virus to enter the cell & N allows the virus to spread; Type A Influenza has the most
variety of H & N antigens
Type A Influenza - correct Answers -- the most virulent and contagious Influenza
- Contains H & N antigens
- Many animals can be a vector for it
- Mutates often and has many different strains
Antigentic Shift - correct Answers -When a virus previously impacting animals, mutates to be
able to infect humans; occurs when the animals becomes infected with two different types of
viruses that combine together to form a new strain of virus; since it's a new strain humans will
not have immunity against it; is responsbile for many recent pandemics
Why is the Flu shot needed annually? - correct Answers -There are several different strains of the
virus; the strain present each year is different than the one last year; it can be completely new or
one not present for a long time, so the vaccine would not protect against the strain
, How does Influenza spread? - correct Answers -- From infected animals to humans via direct
contact or indirect contant (i.e. feces)
- From human to human via inhaled droplets from sneezing or coughing or direct contact with
contaiminated surfaces
Influenza Clinical Manifestations - correct Answers -- Adurbt onset of chills, fever, and myalgia
- Headache, cough, sore throat, and fatigue
- Lung sounds normal unless complications present
Influenza Complications - correct Answers -- Pneumonia (viral or secondary bacterial)
- Ear or sinus infections
- Dehydration (particularly in older adults)
- Acute otitis media (ear infection)
- Sinusitis
- Bronchiolitis
- Reye syndrome (in children who take Asprin)
- Febrile seizures (in children)
- Encephalitis (in children)
Who is at greatest risk of developing complications related to Influenza? - correct Answers --
Older adults
- Young children <6 months
- Pregnant women
- Those w/ chronic health conditions
When is the best time to receive the flu vaccine? - correct Answers -September before flu
exposure, but it can be taken any time during the flu season
Nursing Management of Influenza - correct Answers -- Promoting prevention (flu vaccines,
washing hands