The Common Cold

 

Viral infection of the upper respiratory tract

Etiology:
1.rhinovirus
2.parainfluenza virus
3.respiratory syncytial virus
4.coronaviruses
5.adenovirus

Modes of transmission/spread
1.Direct contact: person to person
most contagious in first 3 days of symptom onset
incubation period of 5 days

2.Indirect contact: viruses can survive more than 5 hours on the following:
fomites
skin
fingers touching contaminated surfaces then mucous membranes

3.Aerosoled
coughing
sneezing

Manifestations:
nasopharyngeal dryness and stuffiness
excessive nasal secretions
tearing at the eyes
typically clear and watery secretions
inflammation and erythmatous upper respiratory tract mucus membranes
sore throat
hoarseness
headache
generalized malaise
chills
fever
exhaustion

duration – 7 days

Diagnosis

Hx
symptoms, onset, duration

Treatment: OTC remedies

1.Antihistamines
used to dry nasal secretions
may act to dry bronchial secretions
may worsen cough
may cause dizziness, drowsiness and impaired judgment

2.Decongestants – sympathomimetic agents
constrict blood vessels to decrease swelling
may result in systemic vasoconstriction
may elevate blood pressure
should be avoided in those with HTN, heart disease, hyperthyroidism, diabetes

3.Vitamin C
studies show contradictory results
4.Zinc Lozenges – studies also show variable results

About these ads

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Follow

Get every new post delivered to your Inbox.

%d bloggers like this: