Disease Of The Respiratory Tract Flashcards
The respiratory tract is transmitted how?
Droplet and air
What are the 2 major entry into the body for respiratory tract?
Upper respiratory tract
Lower respiratory tract
What are some examples of upper respiratory tract?
Nose, pharynx
What are some examples of lower respiratory tract?
Trachea, bronchi, alveoli of the lungs
What are the defenses of the respiratory tract? (3)
Ciliates mucous membranes
Alveolar macrophages
IGA antibodies
What is streptococcal pharyngitis?
Strep throat
What does pharyngitis mean?
Infection of the throat
What is the main bacteria that causes strep throat ?
Streptococcus pyogenes
What is streptococcus pyogenes
( gram stain, group, beta/alpha, shape?)
Positive
Group a
Beta
Coccus
What other things are caused by streptococcus pyogenes?
Impetigo
Erysipelas’s
Necro facilistis
What are the virulence factors of streptococcus pyogenes ? (3)
M protein
Streptokinase
Streptolysisns
What is the transmission of streptococcus pyogenes?
Respiratory route
What is the diagnosis of strep throat?
( C, A, I ) (3)
Culture of throat swab
Quick agglutination test
Rapid enzyme immunoassay
What are the symptoms of strep throat?
Same like viral pharyngitis
Tonsillitis
Rheumatic fever ( severe untreated )
What is a bad symptom to get if you leave strep throat undertreated?
Rheumatic fever
What’s the difference if you were to get viral strep throat and bacteria?
Bacterial- white pus
Viral - enlarged red tonsils
What does streptokinase do in streptococcus pyogenes?
Lyse clots
What does streptolysins do?
They are cytotoxic
What is diphtheria bacteria?
Corynebacterium diphtheria
What is diphtheria
( non spore/spore, gram stain, shape?)
Non spore forming
Positive
Plemorphic rod
How is diptheria transmitted?
Respiratory route
What happens once diptheria is in the body? (5)
Cell replicate in throat
Secrete exotoxin
Exotoxin inhibitz protein synthesis
Synthesis cause kidney/heart failure
Severe inflammatory response
What are the symptoms of diptheria ?
Sore throat
Fever
Weakness
What is the biggest symptom one can use to diagnosis diphtheria? And causes?
Grayish, tough pseudomembrane
Which covers the thorat
Blocks air passage
Causing suffocation
What is the vaccine of diptheria?
DTAP vaccine
Is the DTAP vaccine a subunit vaccine?
Yes
When do we give out the DTAP vaccine? What age group?
2 months, 4,6,8 and then again at 5 years of age to promote immunity
Are the common colds bacteria?
NOOOO NEVER!!!!! ALSO VIRUS!!!
What is rhinovirus? For common colds?
( family, non or enveloped, single or double, dna or rna )
Picornaviridae
Non eceloped
Single stranded
Rna
What percentage of common colds are rhinoviruses?
30-50%