Podcast
Questions and Answers
Which of the following is NOT a common clinical feature of lower respiratory tract infections?
Which of the following is NOT a common clinical feature of lower respiratory tract infections?
- Weight gain (correct)
- Pleuritic chest pain
- Mucopurulent sputum
- Dyspnoea
What is the significance of bradycardia in the context of pneumonia?
What is the significance of bradycardia in the context of pneumonia?
- Indicates a viral infection
- Commonly associated with Legionella (correct)
- Suggests a mild respiratory condition
- Indicates dehydration
What is the primary factor in determining the treatment setting for bacterial pneumonia?
What is the primary factor in determining the treatment setting for bacterial pneumonia?
- Severity of symptoms (correct)
- Patient's weight
- Cost of treatment
- Duration of illness
Which of the following findings would most likely indicate aspiration pneumonia?
Which of the following findings would most likely indicate aspiration pneumonia?
Which of the following is a major clinical finding in patients with lung consolidation?
Which of the following is a major clinical finding in patients with lung consolidation?
What respiratory rate is considered high and may indicate a problem?
What respiratory rate is considered high and may indicate a problem?
What is the primary cause of pneumonia?
What is the primary cause of pneumonia?
Which among the following symptoms is specifically indicative of certain etiologies of pneumonia?
Which among the following symptoms is specifically indicative of certain etiologies of pneumonia?
Which of the following is NOT a type of pneumonia classification?
Which of the following is NOT a type of pneumonia classification?
Which of these findings is associated with a non-bacterial cause of pneumonia?
Which of these findings is associated with a non-bacterial cause of pneumonia?
Which patient population is particularly susceptible to more subtle symptoms of pneumonia?
Which patient population is particularly susceptible to more subtle symptoms of pneumonia?
What is community-acquired pneumonia (CAP)?
What is community-acquired pneumonia (CAP)?
What is the physiological basis of pneumonia?
What is the physiological basis of pneumonia?
What clinical feature is likely present in a patient with pneumonia?
What clinical feature is likely present in a patient with pneumonia?
Which of the following conditions can complicate the presentation of pneumonia in a patient?
Which of the following conditions can complicate the presentation of pneumonia in a patient?
Which imaging study is most likely to reveal findings consistent with pneumonia?
Which imaging study is most likely to reveal findings consistent with pneumonia?
Flashcards
Community-Acquired Pneumonia (CAP)
Community-Acquired Pneumonia (CAP)
A type of pneumonia where infection originates in the community or within 48 hours of hospital admission.
Clinical Features of CAP
Clinical Features of CAP
A clinical diagnosis that involves a group of signs and symptoms related to lower respiratory tract infection.
Increased Temperature in CAP
Increased Temperature in CAP
An increased temperature typically above 38 degrees Celsius (100.4 degrees Fahrenheit).
Decreased Temperature in CAP
Decreased Temperature in CAP
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Increased Respiratory Rate in CAP
Increased Respiratory Rate in CAP
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Increased Heart Rate in CAP
Increased Heart Rate in CAP
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Bradycardia in CAP
Bradycardia in CAP
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Auscultation Findings in CAP
Auscultation Findings in CAP
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Pneumonia
Pneumonia
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Hospital-acquired Pneumonia (HAP)
Hospital-acquired Pneumonia (HAP)
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Ventilator-associated Pneumonia (VAP)
Ventilator-associated Pneumonia (VAP)
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Aspiration Pneumonia
Aspiration Pneumonia
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Immune-compromised Pneumonia
Immune-compromised Pneumonia
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Typical Pneumonia
Typical Pneumonia
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Atypical Pneumonia
Atypical Pneumonia
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Study Notes
Islamic Quotes
- Two words are light on the tongue, heavy in the scales, and beloved by the Merciful: "Subḥān Allāh wa bihamdihi" (Glory be to God, and praise be to Him) and "Subḥān Allāh al-'azīm" (Glory be to the great God).
- These are agreed upon (by the Prophet's companions).
Respiratory Infections-Pneumonia
- Definition: Pneumonia is an inflammation of the substance of the lungs. It can be caused by bacteria, viruses, or fungi.
- Types:
- Community-acquired pneumonia (CAP)
- Hospital-acquired pneumonia (Nosocomial pneumonia)
- ICU-acquired pneumonia
- Non ventilated intensive care acquired pneumonia (NV-ICUAP)
- Ventilator associated pneumonia (VAP)
- Typical pneumonia
- Atypical pneumonia
- Lobar pneumonia
- Bronchopneumonia
- Interstitial pneumonia
- Causes (bacteria): Streptococcus pneumoniae, Mycoplasma pneumoniae, Legionella pneumophila, Chlamydia pneumoniae, Haemophilus influenzae, Staphylococcus aureus, etc.
- Causes (viruses): Influenza, parainfluenza, Measles, Herpes simplex, Varicella.
- Causes (risk factors): Alcoholism, COPD and/or smoking, Nursing home residency, Poor dental hygiene, exposure to bats or soil enriched with bird droppings, Exposure to birds, Exposure to rabbits.
- Symptoms:
- Fever (typically productive)
- Cough (typically productive)
- Shortness of breath
- Fever with chills and sweats
- Chest pain
- Crackles/rhonchi on lung exam
- Leukocytosis
- Additional symptoms (extra-pulmonary):
- Myalgia, arthralgia and malaise (particularly in Legionella and Mycoplasma infections)
- Myocarditis and pericarditis (cardiac manifestations)
- Headache (common with Legionella pneumonia)
- Abdominal pain, diarrhea and vomiting
- Labial herpes simplex reactivation
- Skin rashes (erythema multiforme, erythema nodosum, Stevens- Johnson syndrome)
- Epidemiology: 4th leading cause of death globally, 2-3 million cases/year, 60,000+ deaths/year (2014 US data).
- Clinical stability criteria: Heart rate ≤ 100/min, Respiratory rate ≤ 24/min, Systolic blood pressure ≥ 90 mm Hg, Body temperature ≤ 37.8°C, Ability to take food by mouth, Normal state of consciousness, No hypoxemia (pO2 ≥ 60 mmHg, SaO2 ≥ 90%).
- ICU admission criteria: Invasive mechanical ventilation, Septic shock requiring vasopressors, Confusion/disorientation, Blood urea nitrogen ≥20 mg/dL, Respiratory rate ≥30 breaths/min, Hypotension requiring aggressive fluid resuscitation, PaO2/FiO2 ratio ≤250, Multilobar infiltrates, WBC <4000 cells/mm, Platelet count <100,000 cells/mm, Core temperature <36°C
- Diagnosis investigations: Blood tests (CBC, serum creatinine, electrolytes, CRP, ESR ), sputum samples (Gram stain, culture, NAAT), chest X-ray
- Treatment: Empirical therapy; consider outpatient or inpatient treatment based on severity, comorbid conditions, age, and symptoms.. Specific antibiotic treatments are given based on the likely pathogen (e.g., Strep. pneumoniae, Mycoplasma).
- Complications: Septicemia, Lung abcess, Para-pneumonic effusions, Hypotension, Empyema, Respiratory failure/renal failure.
- Differential Diagnosis: Pulmonary infarction, Pulmonary/pleural tuberculosis, Pulmonary oedema, Pulmonary eosinophilia, Malignancy (bronchoalveolar cell carcinoma), Cryptogenic organising pneumonia, etc
- Risk factors: Age (<16 or >65), co-morbidities (HIV, diabetes, chronic kidney disease, malnutrition ), viral infections, other respiratory conditions (cystic fibrosis, bronchiectasis), lifestyle (smoking, excess alcohol, IV drug use), latrogenic factors (immunosuppressants)
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