chapter 30 upper respiratory conditions - week 2 Flashcards
acute bronchitis
- Acute bronchitis is an inflammation of the bronchi in the lower respiratory tract,
usually caused by infection. It is one of the most common conditions seen in primary
care. - It usually occurs as a sequel to an upper respiratory tract infection.
- The cause of most cases of acute bronchitis is viral (rhinovirus, influenza). However,
bacterial causes are also common both in smokers and nonsmokers. - It is a self-limiting condition; treatment is supportive.
- Cough, the primary symptom, may last up to 3 weeks.
pneumonia
- Pneumonia is an acute inflammation of the lung parenchyma caused by a microbial
agent. - More likely to result when defense mechanisms become incompetent or are
overwhelmed by the virulence or quantity of infectious agents. - Pneumonia can be classified according to the causative organism, such as bacteria,
viruses, Mycoplasma, fungi, parasites, and chemicals
two ways to cassify pneumonia
Community-acquired pneumonia (CAP) is defined as a lower respiratory tract
infection of the lung parenchyma with onset in the community or during the first
two days of hospitalization.
Hospital-acquired pneumonia (HAP) is pneumonia occurring 48 hours or
longer after hospital admission and not incubating at the time of hospitalization.
asiprtiaiton pnemonia
Aspiration pneumonia refers to the sequelae occurring from abnormal entry of
secretions or substances into the lower airway.
oppurunisitic pnemonia
Opportunistic pneumonia presents in certain patients with altered immune responses
who are highly susceptible to respiratory infections.
what are the four charactserists stages of pnemonia
There are four characteristic stages of pneumonia: congestion, red hepatization, grey
hepatization, and resolution.
- Congestion. After the pneumococcus organisms reach the alveoli via droplets or saliva, there is an outpouring of fluid into the alveoli. The organisms multiply in the serous fluid, and the infection is spread. The pneumococci damage the host by their overwhelming growth and interference with lung function.
- Red hepatization. There is massive dilation of the capillaries, and alveoli are filled with organisms, neutrophils, red blood cells, and fibrin The lung appears red and
granular, similar to the liver, which is why the process is called hepatization. - Grey hepatization. Blood flow decreases, and leukocytes and fibrin consolidate in the affected part of the lung.
- Resolution. Complete resolution and healing occur if there are
no complications.
nursing managment of pneumonia
In the hospital, the nursing role involves identifying the patient at risk and taking
measures to prevent the development of pneumonia.
o The essential components of nursing care for patients with pneumonia include
monitoring physical assessment parameters, facilitating laboratory and diagnostic
tests, providing treatment, and monitoring the patient’s response to treatment.
o Treatment with antibiotics is necessary for bacterial pneumonia; all patients
require supportive measures.
tuberculosis
Tuberculosis is an infectious disease caused by M. tuberculosis, a gram-positive,
acid-fast bacillus that is usually spread from person to person via airborne droplets.
The very small droplets, 1 to 5 mcm in size, remain airborne indoors for minutes to
hours. Once inhaled, these small particles lodge in the bronchiole and alveolus. The
bacillus replicates slowly and spreads via the lymphatic system, finding favourable
environments for growth primarily in the upper lobes of the lungs, kidneys, epiphyses
of the bone, cerebral cortex, and adrenal glands.
m. tuberculosis
M. tuberculosis is usually spread from person to person via airborne droplets, which
are produced when the infected individual with pulmonary or laryngeal TB coughs,
sneezes, speaks, or sings. Once released into a room, the organisms are dispersed and
can be inhaled. TB is not highly infectious, and transmission usually requires close,
frequent, or prolonged exposure
m. tuberculosis
M. tuberculosis is usually spread from person to person via airborne droplets, which
are produced when the infected individual with pulmonary or laryngeal TB coughs,
sneezes, speaks, or sings. Once released into a room, the organisms are dispersed and
can be inhaled. TB is not highly infectious, and transmission usually requires close,
frequent, or prolonged exposure
m. tuberculosis
M. tuberculosis is usually spread from person to person via airborne droplets, which
are produced when the infected individual with pulmonary or laryngeal TB coughs,
sneezes, speaks, or sings. Once released into a room, the organisms are dispersed and
can be inhaled. TB is not highly infectious, and transmission usually requires close,
frequent, or prolonged exposure
m. tuberculosis
M. tuberculosis is usually spread from person to person via airborne droplets, which
are produced when the infected individual with pulmonary or laryngeal TB coughs,
sneezes, speaks, or sings. Once released into a room, the organisms are dispersed and
can be inhaled. TB is not highly infectious, and transmission usually requires close,
frequent, or prolonged exposure
what complications can tuberolsis present
Can present with a number of complications, including: the spread of the disease with
involvement of many organs simultaneously (miliary or hematogenous TB), pleural
effusion, empyema, and pneumonia.
what is the best way to disgonse m tuberculsois infection
The tuberculin skin test using purified protein derivative (PPD) is the primary way to
diagnose latent M. tuberculosis infection, whereas the diagnosis of tuberculosis
disease requires demonstration of tubercle bacilli bacteriologically.
what is the best way to disgonse m tuberculsois infection
The tuberculin skin test using purified protein derivative (PPD) is the primary way to
diagnose latent M. tuberculosis infection, whereas the diagnosis of tuberculosis
disease requires demonstration of tubercle bacilli bacteriologically.
what is the best way to disgonse m tuberculsois infection
The tuberculin skin test using purified protein derivative (PPD) is the primary way to
diagnose latent M. tuberculosis infection, whereas the diagnosis of tuberculosis
disease requires demonstration of tubercle bacilli bacteriologically.
what is the best way to disgonse m tuberculsois infection
The tuberculin skin test using purified protein derivative (PPD) is the primary way to
diagnose latent M. tuberculosis infection, whereas the diagnosis of tuberculosis
disease requires demonstration of tubercle bacilli bacteriologically.
what is the best way to disgonse m tuberculsois infection
The tuberculin skin test using purified protein derivative (PPD) is the primary way to
diagnose latent M. tuberculosis infection, whereas the diagnosis of tuberculosis
disease requires demonstration of tubercle bacilli bacteriologically.
if a patient is suspected of having TB they should be..
Patients strongly suspected of having TB should (1) be placed on respiratory
isolation, (2) receive four-drug therapy, and (3) receive an immediate medical
workup, including chest x-ray examination, sputum smear, and culture.
pulmonary fungal infections
Lung infections include aspergillosis, cryptococcosis, and candidiasis. These
infections are not transmitted from person to person, and the patient does not have to
be placed in isolation.
Are found frequently in seriously ill patients being treated with corticosteroids,
antineoplastic and immuno-suppressive drugs, or multiple antibiotics.
Are also found in patients with AIDS and cystic fibrosis.
medications that help treat fungal infections
- IV Amphotericin B (Fungizone) is the drug most widely used in treating serious
systemic fungal infections. Oral antifungal drugs such as ketoconazole (Nizoral), fluconazole (Diflucan), and itraconazole (Sporanox) have also been successful in the
treatment of fungal infections..
bronchiectasis
Bronchiectasis is characterized by permanent, abnormal dilation of one or more large
bronchi. The pathophysiological change that results in dilation is destruction of the
elastic and muscular structures supporting the bronchial wall.
The hallmark of bronchiectasis is persistent or recurrent cough with production of
greater than 20 mL of purulent sputum per day.
how to treat bronchiectasis
Bronchiectasis is difficult to treat. Therapy is aimed at treating acute flare-ups and
preventing decline in lung function.
Antibiotics are the mainstay of treatment and are often given empirically, but
attempts are made to culture the sputum.
Long-term suppressive therapy with
antibiotics is occasionally used but is fraught with risks of antibiotic resistance.
An important nursing goal is to promote drainage and removal of bronchial mucus