This document provides an introduction to respiratory medicine. It discusses the basic functions of the respiratory system including gas exchange in the lungs and maintaining acid-base balance. The three main components of the respiratory system are described as the respiratory tracts, ventilatory pump (respiratory muscles), and gas exchanger (alveoli). Common respiratory diseases are a major global health burden and include conditions like pneumonia, tuberculosis, and COPD. The diagnosis of respiratory diseases involves taking a medical history, physical examination, and investigative tests like spirometry, diffusion capacity testing, and imaging.
medical surgical nursing 1
respiratory disorder lower airway
etiology, pathophysiology, clinical manifestations, and nursing management for the patient with pneumonia,chronic bronchitis and emphysema,asthma.
What the structures of the lower airway?
What are the functions of each structure?
medical surgical nursing 1
respiratory disorder lower airway
etiology, pathophysiology, clinical manifestations, and nursing management for the patient with pneumonia,chronic bronchitis and emphysema,asthma.
What the structures of the lower airway?
What are the functions of each structure?
CHRONIC OBUSTRUCTIVE PULMONARY DISEASE POWER POINT.pptxAgbaMakuochi
This describes a whole lot more of what Chronic Obstructive Pulmonary Disease is with their pathophysiology and management both medical and nursing management
Chronic Obstructive Pulmonary Disease (COPD) is an umbrella term used to describe progressive lung diseases including emphysema, chronic bronchitis, and refractory (non-reversible) asthma. This disease is characterized by increasing breathlessness
Discussion #11. What physical findings might be indicative of a .docxmecklenburgstrelitzh
Discussion #1
1. What physical findings might be indicative of a patient with emphysema? The diagnosis is made on patients that usually are long term smokers, and they complaint of dyspnea, cough, and mucus expectoration. Most patients seek medical attention late in the course of their disease, usually ignoring smoldering symptoms that start gradually and progress over the course of years. The cough typically is worse in the morning with finite production of clear-to-white sputum. Dyspnea, emphysema's most significant symptom, does not generally occur until the sixth decade of life. However, patients with emphysema due to alpha 1 -antitrypsin deficit will exhibit the following characteristics: early presentation (< 45 y), predilection of emphysematous changes in the lung bases, and the panacinar morphological pattern.
Although the sensitivity of the physical evaluation in mild-to-moderate disease is relatively poor, the physical signs are quite sensitive and specific in severe disease. Patients with severe disease may experience tachypnea and dyspnea with mild exertion.
The respiratory rate increases in proportion to disease severity with the use of accessory respiratory muscles and paradoxical contraction of lower intercostal spaces becoming evident during exacerbations.
In end-stage emphysema, cyanosis, elevated jugular venous pressure, atrophy of limb musculature, and peripheral edema due to the development of pulmonary hypertension, right-to-left shunting, and/or right heart failure can easily be observed.
Thoracic examination reveals a 2:1 increase in anterior to posterior diameter (“barrel chest”), diffuse or focal wheezing, diffusely diminished breath sounds, hyperresonance upon percussion, prolonged expiration, and/or hyperinflation on chest radiographs.
2. What is the purpose and interpretations of the pulmonary function test? Pulmonary function tests will test the mechanical function of the lungs, chest wall, and respiratory muscles by measuring the total volume of air exhaled from a full lung (total lung capacity [TLC]) to maximal expiration (residual volume [RV]). This volume, the forced vital capacity (FVC) and the forced expiratory volume in the first second of the forceful exhalation (FEV1), In Emphysema, spirometry may show typical obstructive pattern due to the blockage of the air during expiration. As a result of the air trapping, the spirometry will show decreased in FVC, but less than the FEV 1, and increased FRC and RV.(McCance, & Huether, 2013).
3. What are the pathophysiological findings specifying emphysema? As a result of the cellular apoptosis, and early cellular senescence, the alveolar cells are damaged, and a reduced surface of gas exchanged occurred. The destruction of the alveoli creates bullae, which are large spaces in the lung parenchyma and air spaces adjacent to pleurae(blebs). Both elements bullae, and blebs difficult the air exchange. In addition, areas of the lungs that are bad perfused contributes to w.
pathology of the respiratory system plus review of anatomy and physiology
No copy right infringement is intended. This is a lecture note handout by Carey Francis Okinda
micro teaching on communication m.sc nursing.pdfAnurag Sharma
Microteaching is a unique model of practice teaching. It is a viable instrument for the. desired change in the teaching behavior or the behavior potential which, in specified types of real. classroom situations, tends to facilitate the achievement of specified types of objectives.
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NVBDCP was launched in 2003-2004 . Vector-Borne Disease: Disease that results from an infection transmitted to humans and other animals by blood-feeding arthropods, such as mosquitoes, ticks, and fleas. Examples of vector-borne diseases include Dengue fever, West Nile Virus, Lyme disease, and malaria.
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Explore the benefits of combining Ayurveda with conventional Parkinson's treatments. Learn how a holistic approach can manage symptoms, enhance well-being, and balance body energies. Discover the steps to safely integrate Ayurvedic practices into your Parkinson’s care plan, including expert guidance on diet, herbal remedies, and lifestyle modifications.
Knee anatomy and clinical tests 2024.pdfvimalpl1234
This includes all relevant anatomy and clinical tests compiled from standard textbooks, Campbell,netter etc..It is comprehensive and best suited for orthopaedicians and orthopaedic residents.
These simplified slides by Dr. Sidra Arshad present an overview of the non-respiratory functions of the respiratory tract.
Learning objectives:
1. Enlist the non-respiratory functions of the respiratory tract
2. Briefly explain how these functions are carried out
3. Discuss the significance of dead space
4. Differentiate between minute ventilation and alveolar ventilation
5. Describe the cough and sneeze reflexes
Study Resources:
1. Chapter 39, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 34, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 17, Human Physiology by Lauralee Sherwood, 9th edition
4. Non-respiratory functions of the lungs https://academic.oup.com/bjaed/article/13/3/98/278874
2. BASIC HUMAN SURVIVAL NEEDS:
Oxygen : HUMAN CANNOT SURVIVE
FOR MORE THAN 10 MINUTES
WITHOUT OXYGEN
Water : HUMAN CANNOT SURVIVE FOR
MORE THAN 100 HOURS WITHOUT
WATER
Food : HUMAN CANNOT SURVIVE FOR
MORE THAN 1000 HOURS WITHOUT
FOOD
2
3. The primary function of the lungs is gas exchange. This requires
the movement of O2 into the blood to support aerobic respiration
in the mitochondria and the removal of the metabolic by-product
CO2 from the blood.
To achieve this, an integrated system of external respiration
(lungs), circulatory system (cardiovascular and hematology
systems) and cellular respiration (internal respiration) must
function harmoniously.
3
6. 2- ventilatory pump
consists of the following:
1-Brainstem centers (respiratory centers) that control the
respiratory muscles.
2- The respiratory muscles (internal/external intercostal muscles ,
diaphragm) , which expand and contract the thoracic cavity.
6
7. 3-Gas exchanger
Consists of thousands of lung alveoli where O2 and CO2
exchanged through respiratory membrane proportional to the
difference in partial pressure.
7
8. MAIN FUNCTIONS OF RESPIRATORY SYSTEM
1-Provides an extensive area for gas exchange
between air & circulating blood
2-Assists in the control of acid-base balance
3-Produce sounds involved in speaking.
8
9. Respiratory disease is defined
any deviation from or interruption of the normal
structure or function of any components of
respiratory system (Respiratory tracts,
ventilatory pump ,and Gas exchanger),
manifested by a characteristic set of symptoms
and signs; and may affect the main functions of
respiratory system .
9
10. The Burden of Respiratory Disease
Respiratory disease is responsible for a major burden of morbidity
and mortality, with conditions such as tuberculosis, pandemic
influenza and pneumonia the most important in world health
terms.
The increasing prevalence of allergy, asthma and chronic
obstructive pulmonary disease (COPD) contributes to the overall
burden of chronic disease in the community.
By 2025, the number of cigarette smokers worldwide is anticipated
to increase to 1.5 billion, ensuring a growing burden of tobacco-
related respiratory conditions.
10
11. • 20% of people consulted a physician for a respiratory
complaint
• TB infect 1/3 of population
• Respiratory diseases are among the leading causes of death
worldwide. Lung infections (mostly pneumonia and
tuberculosis), lung cancer and chronic obstructive pulmonary
disease (COPD) together accounted for one-sixth of the global
total.
• The World Health Organization estimates that the same four
diseases accounted for one-tenth of the disability-adjusted life-
years (DALYs) lost worldwide in 2008
11
12. • Most of emerging infectious diseases (diseases that appear
in the last 30 years) are of respiratory origin like
SWINE FLU (H1N1) ,
SARS ,
AVIAN FLU( H5N1),
MIDDLE EAST RESPIRATORY SYNDROME
CORONAVIRUS (MERS-COV)
12
18. 18
➢Basic tests for preliminary assessment and for
monitoring disease progression include :-
1-spirometry, which is a record of exhaled
volume versus time during a forced
exhalation (with or without determination of
the response to an inhaled bronchodilator
for possible reversible airflow).
19. • Among the most helpful spirometric values are
1-Forced vital capacity ( FVC ),
2-Forced expiratory volume in the first second of
exhalation (FEV1), and
3-Ratio (FEV1 / FVC).
19
21. 2-Diffusion capacity, which measures the
transfer of carbon monoxide to indicate how
well inspired gases cross the alveolar-
interstitial-capillary endothelial interface into
blood. diffusion capacity of the lung for
carbon monoxide (Dlco)
3-Lung volumes , which include TLC,VC,RV.
21
22. INTERPRETATION OF SPIROMETRY
PULMONARY FUNCTION TESTS HELP TO IDENTIFY AND
QUANTIFY ABNORMALITIES OF PULMONARY SYSTEM ,
WHICH USUALLY ARE CATEGORIZED AS
OBSTRUCTIVE OR RESTRICIVE .
❖OBSTRUCTIVE LUNG DISEASE:
➢FEV1 ↓ <80%
➢FVC normal 80%
➢FEV1/ FVC ↓ <70%
22
26. Pulmonary Function Tests
Indications
1. Detect the presence of lung dysfunction classified
as obstructive or restrictive lung disease.
2. Quantify severity of known lung disease
3. evaluation of response to various treatments
including bronchodilators for asthma and
corticosteroids for interstitial lung disease
4. monitoring pulmonary side effects of treatment
(e.g., methotrexate, amiodarone)
5. Assess the risk for surgery (preoperative
assessment)
26
27. Categories of respiratory diseases
• 1-obstructive lung disease :
partial or complete obstruction of the airways due to
anatomic narrowing or loss of elastic recoil.
Causes
Asthma,
emphysema,
chronic bronchitis ,
bronchiectasis,and
cystic fibrosis
27
28. • 2-Restricive lung disease:
Reduced expansion of the lung parenchyma due to
restrictive disease of lung,pleura,and chest wall.
Causes
Interstitial lung disease,
Pleural effusion,
Pneumothorax,
Pleural fibrosis and tumor ,
Pulmonary embolism,
Kyphoscoliosis,
Ankylosing spondylitis,
Neuromuscular disease,
28
29. • 3-Combination of obstructive and restrictive
Due to mixed pathology
Causes
Lung Infection: TB , Pneumonia.
Lung malignancy
Sarcoidosis
29