This document summarizes various symptoms of respiratory diseases. It describes cardinal symptoms such as cough, sputum, hemoptysis, dyspnea, wheezes and chest pain. It then discusses specific symptoms in more detail, including cough, sputum production, hemoptysis, breathlessness/dyspnea, wheezes, chest pain, and stridor. For each symptom, it outlines potential causes, characteristics, and how they present acutely or chronically.
2. Symptoms of Respiratory Diseases
Other presenting symptoms
Apnea
Hoarseness
Stridor
Snoring
Fever
Night sweating
Weight loss
3. Symptoms of Respiratory Diseases
Cough
Cough is the most frequent symptom of respiratory
diseases
Coughing is a forceful expiratory maneuver that expels
mucus and foreign material from the airways.
Coughing usually occurs when irritant receptors are
stimulated by inflammation, mucus, foreign materials,
or noxious gases. Cough receptors are located primarily
in the larynx trachea, and larger bronchi.
Inspiration is followed by an expiratory effort against a
closed glottis. Subsequent sudden opening of the glottis
with rapid expiratory flow produces the characteristic
sound.
4. Symptoms of Respiratory Diseases
Cough
The effectiveness of a cough depends on (1) the ability
to take a deep breath, (2) lung elastic recoil, (3)
expiratory muscle strength, and (4) level of airway
resistance. The ability to take a deep breath and exhale
forcefully is often impaired in patients with
cardiopulmonary, neurologic, or neuromuscular
diseases.
An inadequate cough because of pain in the early
postoperative period following upper abdominal or
thoracic surgery or trauma results in atelectasis,
retained secretions, and increased susceptibility for
developing pneumonia and/or hypoxemia
5. Symptoms of Respiratory Diseases
Acute cough
Acute bronchitis
Pneumonia
Post nasal drip
Laryngitis ,pharyngitis
Foreign body
Aspiration
Pulmonary Embolism
Left ventricular failure
The most common cause of an acute, self-
limited cough is a viral infection of the upper
airway.
9. Symptoms of Respiratory
Diseases
Sputum Production
Sputum is the substance expelled from the
tracheobronchial tree, pharynx, mouth, sinuses,
and nose by coughing or clearing the throat. The
term phlegm refers strictly to secretions from the
lungs and tracheobronchial tree uncontaminated by
oral secretions
The tracheobronchial tree normally secretes up to
100 mL of sputum each day.
Sputum should be described as to the color,
consistency, odor, quantity, time of day, and
presence of blood or other distinguishing matter
A change in colour or consistency, or an increase in
volume may indicate a new infection in chronic dis
10. Symptoms of Respiratory
Diseases
Presumptive Sputum Analysis
Appearance of Sputum Possible Cause
Clear, colorless, like egg White Normal
Black Smoke or coal dust inhalation
Brownish Cigarette smoker
Frothy white or pink Pulmonary edema
Sand or small stone Aspiration of foreign material,
broncholithiasis
Purulent (contains pus) Infection, pneumonia
caused by:
Apple-green, thick Haemophilus influenzae
Pink, thin, blood-streaked Streptococci or
staphylococci
11. Symptoms of Respiratory
Diseases
Presumptive Sputum Analysis
Red currant jelly Klebsiella species
Rusty Pneumococci
Yellow or green, copious Pseudomonas species
pneumonia, advanced chronic bronchitis,
bronchiectasis (separates into layers)
Foul odor (fetid) Lung abscess, aspiration,
anaerobic infections, bronchiectasis
Mucoid (white-gray and thick) Emphysema,
pulmonary tuberculosis, early chronic bronchitis,
neoplasms, asthma
Grayish Legionnaires disease Silicone-like casts
Bronchial asthma
12. Symptoms of Respiratory Diseases
Hemoptysis
Coughing up blood, irrespective of the amount, is an
alarming symptom and patients nearly always seek
medical advice, must always be assumed to have a serious cause
until this is excluded.
Massive >200 ml/episode, (400 mL in 3 hours
or more than 600 mL in 24 hours) is seen with
lung cancers, tuberculosis, bronchiectasis,
and trauma.
15. Symptoms of Respiratory Diseases
management
severe acute haemoptysis
the patient should be nursed upright (or on the side of the
bleeding, if this is known,
give high-flow oxygen
resuscitation.
Bronchoscopy in the acute phase is difficult
If radiology shows an obvious central cause, then rigid
bronchoscopy under general anaesthesia may allow
intervention to stop bleeding;
if not visualised, Intubation with a divided endotracheal tube
Bronchial arteriography and embolisation or
even emergency surgery, can be life-saving .
16. Symptoms of Respiratory Diseases
In non life threating (vast majority)
Investigations
chest X-ray,
full blood count (FBC) and clotting screen
bronchoscopy after acute bleeding has settled,
CTPA, which may reveal underlying pulmonary
thromboembolic disease or alternative causes not
seen on the chest X-ray (e.g. pulmonary
arteriovenous malformation or small or hidden
tumours).
17. Symptoms of Respiratory Diseases
Breathlessness
Breathlessness or dyspnoea can be defined as the
feeling of an uncomfortable need to breathe. It is
unusual among sensations, as it has no defined
receptors, no localised representation in the brain,
and multiple causes both in health (e.g. exercise)
and in diseases of the lungs, heart or muscles.
18. Symptoms of Respiratory Diseases
Pathophysiology
Respiratory diseases can stimulate breathing and
dyspnoea by:
stimulating intrapulmonary sensory nerves (e.g.
pneumothorax, interstitial inflammation and
pulmonary embolus)
increasing the mechanical load on the respiratory
muscles (e.g. airflow obstruction or pulmonary
fibrosis)
causing hypoxia, hypercapnia or acidosis, which
stimulate chemoreceptors.
20. Symptoms of Respiratory Diseases
Dyspnea
Acute dyspnea (hours
to days)
Respiratory
*Acute severe asthma
*Acute exacerbation of COPD
*Pneumothorax
*Pneumonia
*Pulmonary embolus
ARDS
Inhaled foreign body (especially in
children)
Lobar collapse
Laryngeal oedema (e.g. anaphylaxis
21. Symptoms of Respiratory Diseases
Cardiovascular
*Acute pulmonary oedema
Others
Metabolic acidosis (e.g. diabetic
ketoacidosis, lactic acidosis, uraemia,
overdose of salicylates, ethylene glycol
poisoning).
Psychogenic hyperventilation (anxiety
or panic-related)
22. Symptoms of Respiratory Diseases
Chronic dyspnea (months to Years)
Respiratory
*COPD
*Chronic asthma
Bronchial carcinoma
Interstitial lung disease (sarcoidosis, fibrosing
alveolitis, extrinsic allergic alveolitis, pneumoconiosis)
Chronic pulmonary thromboembolism
Lymphatic carcinomatosis (may cause intolerable
breathlessness)
Large pleural effusion(s)
23. Symptoms of Respiratory Diseases
Cardiovascular
Chronic heart failure
Myocardial ischaemia (angina
equivalent
Others
Severe anaemia
Obesity
Deconditioning
24. Symptoms of Respiratory Diseases
Factors suggesting psychogenichyperventilation
Inability to take a deep breath
Frequent sighing/erratic ventilation at rest
Short breath-holding time in the absence of severe
respiratory disease
Difficulty in performing and/or inconsistent spirometry
measures
High score (over 26) on Nijmegen questionnaire
Induction of symptoms during submaximahyperventilation
Resting end-tidal CO2 < 4.5%
Associated digital paraesthesiae
25. Symptoms of Respiratory Diseases
Types of dyspnea
Paroxysmal dyspnea
Bronchial asthma (wheezes, no crackles)
Left ventricular failure (crackles,
cardiomegaly)
Nocturnal dyspnea
Bronchial asthma
GERD
LVF
28. Symptoms of Respiratory
Diseases
Orthopnoea
dyspnoea on lying flat
It commonly occurs in patients with CHF, mitral
valve disease, bilateral diaphragm paralysis, and
superior vena cava syndrome.
Paroxysmal nocturnal dyspnoea
sudden breathlessness that wakes the patient from
sleep
Platypneais dyspnea triggered by assuming the
upright position. seen in patients with right-to-left
intracardiac shunts from congenital heart disease
and in patients with venous-to-arterial shunts in the
lung related to severe lung disease or chronic liver
29. Symptoms of Respiratory Diseases
Wheezes (Rhonchi)
Bronchial asthma
COPD
Pulmonary embolism
Lung cancer
Bronchiectasis
LVF
33. Symptoms of Respiratory
Diseases
Stridor
This harsh, grating respiratory sound is caused by
vibration of the walls of the trachea or major bronchi
when the airway lumen is critically narrowed by
compression, tumour or inhaled foreign material.
Inspiration lowers the pressure inside the
extrathoracic trachea, so critical narrowing here
leads to inspiratory stridor. In contrast, the
intrathoracic large airways are compressed during
expiration by positive pressure in the surrounding
lung, leading to fixed expiratory wheeze or stridor.
Large airway narrowing at the thoracic inlet (for
example, tracheal compression by a large goitre)
cause both inspiratory ,expiratory stridor
34. Symptoms of Respiratory
Diseases
Edema
is soft tissue swelling resulting from an abnormal
accumulation of fluid. It may be generalized
(anasarca), may appear only in dependent body
areas (feet and ankles in ambulatory patients or the
sacral area in patients on bed rest), or may be
limited to a single extremity or organ (such as
pulmonary edema).
Edema is associated with kidney disease, liver
disease, cardiac and pulmonary disease, and
obstruction of venous or lymphatic drainage of an
extremity.