Community-Acquired Pneumonia Flashcards
How do mucous and pH make the nose and throat inhospitable for some organsims
Germs are caught and cannot move while the pH is to low for some germs
T/F: Cilia constantly move mucus up and out
True
T/F: Cough and Gag reflex helps to aid in destroying organisms by either spitting out or sending them to the stomach
True
How do microorganisms gain access to the body
Aerosolized particles, hematogenous, Aspiration
What diseases can impair lung defenses
Guillian Barre, Multiple Sclerosis, Seizures, Cystic Fibrosis, Myocardial Infaction, Stroke, HIV
What factors can impair lung defenses
using narcotics, alcohol, smoking, colonization
What lung sounds can be heard in a patient
Rales and rhonchi, dullness to percussion
What is a key way to know if pneumonia is present
Infiltrates on chest x-rays
What is the definition of community acquired-pneumonia
an acute infection of the pulmonary parenchyma in a patient that has not been recently hospitalized, exposed to antibiotics , or residing in a nursing home
Along with the definition of community acquired-pneumonia what else is need to diagnose community-acquired pneumonia
Clinical symptoms or presence of an infiltrate or ausculatory findings
T/F: Diagnosing the cause of pneumonia is done 70% of the time
False: 40-60% of cases of CAP fail to identify a causative organism
What are the typical organisms that cause pneumonia
Streptococcus pneumonia, moraxella catarrhalis, hemophilus influenzae
What are the atypical organisms that cause pneumonia
Chlamydophilia, mycoplasma
What are the opportunistic organisms that pneumonia (Immunocompromisde/elderly)
legionella, influenza
What risk factors for acquiring pneumonia
Age, immunocompromised (HIV/ Hematologic malignancy), COPD. smoking, alcoholism, chronic cardiovascular disease, diabetes
What constitutes a good sputum culture
Greater than 25 WBCs and less than 10 epithelial cells
T/F: A negative chest X-ray proves there is no pneumonia
False: Negative chest X-rays could be because the patient is dehydrated
What is the CURB-65, what does each letter stand for
Clinical predication tool for the severity of the pneumonia/ C= confusion, U=uremia, R= respiratory rate, B= blood pressure
What are the ranges for each section of the CURB-65
Uremia- BUN greater than 20mg/dl, Respiratory rate- greater than or equal to 30, Blood Pressure less than 90/60 mmHg, Age greater than 65
What score on the CURB-65 leads to outpatient, inpatient, ICU
0-1, 2, greater than 3
What are the the two antibiotics that can be given for a patient with no risk factors and has not be on any antibiotics
Macrolides OR doxycycline
What is the drugs names dose, frequency for macrolides used to treat a patient with pneumonia with no risk factors and not recent antibiotic therapy
Azithromycin extended release suspension 2 grams once or 500 mg tablet for 1 day then 250 mg tablet for 4 days, clarithromycin 250-500 mg every 12 hours or extended release 1 gram for 1 day
What is dose and frequency for doxycycline used to treat a patient with pneumonia with no risk factors and no recent antibiotic therapy
100 mg every 12 hours for 7 to 14 days
T/F: Clarithromycin must be renally adjusted and is a strong inhibitor of 3A4 therefore it is not used as often as azithromycin
True