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Influenza, or the flu, is a highly contagious viral infection affecting millions annually. It presents with rapid onset symptoms such as chills, fever, cough, and muscle aches. The elderly are particularly vulnerable to severe complications. Effective vaccination can reduce flu incidence, especially among high-risk groups. Understanding the modes of transmission, typical symptoms, and preventive measures, such as hand hygiene and respiratory etiquette, is crucial for managing outbreaks and protecting public health.
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Respiratory Part 2 Medical Surgical Nursing
Influenza • AKA • Flu • Highly contagious • Pathogen • Viral • Epidemic • Rapid and extensive spreading infection and affecting many individuals in an area or a population at the same time
FYI • Influenza & its complications (primarily bacterial pneumonia) are the 8th leading cause of death in the US. • @60,000 year
H1N1 • Newly identified stain • Pandemic • (World-wide epidemic)
Mode of transmission • Airborne droplet • Direct contact
Influenza Statistics • Incubation period • Short • Onset • Rapid • Duration • Up to a week
Influenza: S&S (local) • Runny nose • Sore throat • Cough • Dry • Non-productive productive • Substernal burning
Influenza: S&S (systemic) • Chills & fever • H/A • Malaise • Muscle aches • Fatigue & weakness
Older adults • Higher risk of • Complications • Pneumonia • Death
Why are older adult more susceptible to complications of influenza? • Cilia • i • Chest muscle strength • i • Chest wall • Stiffer • Cough • Less effective
Assessment • S&S • Vital Signs
IDT • “Most URI’s are self-limiting”
IDT • Self-care • Symptomatic relief • Prevent complications • Prevent spread
Dx test • Throat swab • R/O streptococci • CBC • WBC normal • Vial • WBC increased • Bacterial • Chest x-ray • R/O pneumonia
Flu Vaccine: Is it effective? • Polyvalent influenza virus vaccine • 85% effective
Flu Vaccine: Who should get it? • Age >50 years • Nursing home residents • Pg women • Chronically ill • Immunosuppressed • Resp. conditions • Healthcare workers • Fam. members of those at risk
Flu Vaccine: Who should not get it? • Allergic to eggs
Small Group Questions • What pathogen is assoc. with flu? • Identify 5 S&S of the flu • What type of isolation would you use for a client with the flu • Mary asks you if she should get the flu vaccine, how do you respond? • What priority nursing diagnosis would you give for a person with the flu?
Which of the following nursing interventions is appropriate after a client has had a bronchoscopy? • Report abnormal lab values • Lay flat for 8 hours with a sand bag to the puncture site • NPO until gag reflex returns • Push fluids
Tuberculosis • AKA • TB
Tuberculosis - FYI • Causes more death than any other disease. 2 billion world wide, 15 million in the US
Tuberculosis - FYI • When treated, about 90% of those with active TB survive!
Tuberculosis • Pathophysiology • Mycrobacterium tuberculosis • Tubercle bacillus
Tuberculosis Pathophysiology • Mode of transmission • Air-borne • alveoli • Multiplies in alveoli
Tuberculosis • Immune response phase • Macrophages attack TB • TB has waxy cell wall that protects it from macrophages • Immune system surrounds the infected macrophages • Forms a Lesion • Called a Tubercle
Tuberculosis • Dormant phase • Contagious? • No • Symptomatic? • No • PPD? • positive • chest x-ray? • Negative
Tuberculosis • Active phase • If an infected person has a weakened immune system, • the TB escapes and infects the body
Tuberculosis • 5-10% become active • Only contagious when active • Primarily affect lungs but… • Kidneys • Liver • Brain • Bone
Tuberculosis Etiology • Assoc. w/ • Poverty • Malnutrition • Overcrowding • Substandard housing • Inadequate health care • Elderly • HIV • Prison
Tuberculosis: S&S (active phase) • NOC sweats • Low grade fever • Wt loss • Chronic productive cough • Rust colored & thick • Hemoptysis • SOB
Tuberculosis: Dx test • PPD • Mantoux skin test • > 10mm in diameter • induration • Indicates: • Latent TB • Read • 48-72 after • Intradermal: • 15-degrees
Tuberculosis • Diagnostic tests • X-ray • Symptoms • Acid Fast Bacillus
Tuberculosis: Tx / Rx • INH • isonicotinyl hydrazine • Isoniazid • Toxic to the liver • Rifampin • Turns urine red
Tuberculosis: Prevention • Clean well ventilated living areas • Resp. isolation • Negative pressure room • If exposed take • INH
Tuberculosis: complication • Malnutrition • S/E of Rx treatment • Multi-drug resistance • Spread of TB infection
Small Group Questions • What type of pathogen is TB? • What is the mode of transmission? • What are the classic S&S of TB ? • How to administer and read a PPD? • If a pt is PPD +, what does that mean?
Small Group Questions • What is the standard screening method of TB? • That medications are used to treat TB, what are their side effects? • Where in the US is TB most prevalent? Why?
COPD - overview COPD? • Chronic Obstructive Pulmonary Disease • Broad classifications of diseases
COPDCharacteristics • Airflow limitation • Irreversible • Dyspnea on exertion • Progressive • Abn. inflammatory response of the lungs to noxious particles or gases
Pathophysiology • Noxious particles of gas • Inflammatory response • Narrowing of airway
Pathophysiology • Inflammation • Thickening of the wall of the pulmonary capillaries
COPD • Includes • Emphysema • Chronic bronchitis • Does not include • Asthma
COPD - FYI • COPD 4th leading cause of death in the US • 12th leading cause of disability • Death from COPD is on the rise while death from heart disease is going down
COPD: Risk Factors • Smoking • Passive smoking • Occupational exposure • Air pollution
COPD risk factors • #1 • Smoking • Why is smoking so bad?? • ↓ phagocytes • ↓ cilia function • ↑ mucus production
Chronic Bronchitis • Disease of the airway • Definition: • cough + sputum production • > 3 months
Chronic Bronchitis Pathophysiology • Pollutant irritates airway • Inflammation • h secretion of mucus • Bronchial walls thicken • Lumen narrows • plugs
Chronic Bronchitis • Alveoli/bronchioles become damaged • ↑ susceptibility to LRI
Emphysema: Pathophysiology • Affects alveolar membrane • Destruction of alveolar wall • Loss of elastic recoil • Over distended alveoli
Emphysema Pathophysiology • Over distended alveoli • Damage to adjacent pulmonary capillaries • Impaired passive expiration