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P-THORAX summaries the presentation of pneumothorax:

Pleuritic chest pain.
Tracheal deviation.
Hyper-resonance on percussion.
Onset is sudden.
Reduced breath sounds unilaterally.
Absent fremitus.
X-ray shows lung collapse.
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Pulmonary Embolism: It is basically a blood clot that forms in the venous system traveling to the lung causing obstruction of the pulmonary vasculature.

β€’ It is suggested by the presence of acute onset of dyspnea, pleuritic chest pain, hypoxia, hemoptysis, low-grade fever, and tachycardia.
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Consider thrombolytic therapy as a treatment for a PE patient only if the patient is hemodynamically unstable (low SBP<90mmHg), and in cases of acute right ventricular dysfunction.
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Sources of [H+]:
β€’ Carbonic acid formation: the major source of H+ is from metabolically produced CO2.
β€’ Inorganic acid produced during nutrient breakdown: dietary proteins contain a large quantity of sulfuric acid and phosphoric acid.
β€’ Organic acid resulting from intermediary metabolism: lactic acid and fatty acids.
πŸ”΄ Chronic Hepatitis B
PPD test for Tuberculosis:
β€’ β‰₯5mm induration in high risk group ➑️HIV, and close contact.
β€’ β‰₯10mm induration in moderate risk group ➑️medical comorbidities, healthcare workers, and immigrants within the past 5 years.
β€’ β‰₯15mm induration in low risk group ➑️normal healthy individuals.
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The pH of the blood is normally 7.35 - 7.45
β€’ A pH > 7.45 ➑️Alkalosis.
β€’ A pH < 7.35 ➑️Acidosis.
Travellers’ Diarrhea: Acquired through ingestion of fecally contaminated food, water, and ice.

Causes:
β€’ 80% is bacterial cause.
β€’ 50% of all cases: Enterotoxigenic E.coli.
β€’ 10%-20% of cases: Shigella.
β€’ Other common causes: campylobacter jejuni.
Diagnosis of Acute & Subacute Diarrhea:
➑️Exclude infection [stool study] GOLD STANDARD for acute diarrhea.
➑️Check for: mucus, blood [RBCs], WBCs.
➑️If negative go for Endoscopy.
Pyloric Stenosis:
Congenital hypertrophy of the pyloric muscles at the end of the stomach causing gastric outlet obstruction.
Cerebral Palsy Prognosis:
β€’ 58% of patients will walk independently.
β€’ The survival rate is highly variable and dependent on the extent of the motor impairment.
πŸ”΄Causes of CHF Exacerbation:
πŸ”΄ GOLD Classification of COPD Severity:
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Lacunar Infarct:
Infarcts affecting small perforating arteries that supply structures deep to the cortex like:
1. The basal ganglia.
2. The internal capsule.
3. Pons.
Screening for Hypertension
β€’ According to USPSTF, all adults should check their BP:
- If normal BP ➑️recheck every 2 years.
- If pre-hypertensive ➑️recheck every year.
Which of the followings is the most sensitive test for SLE:
anonymous poll

Anti-Smith antibody. – 60
πŸ‘πŸ‘πŸ‘πŸ‘πŸ‘πŸ‘πŸ‘ 54%

ANA. – 28
πŸ‘πŸ‘πŸ‘ 25%

Anti-DDNA. – 20
πŸ‘πŸ‘ 18%

ANCA. – 4
▫️ 4%

πŸ‘₯ 112 people voted so far. Poll closed.
Appendectomy is the only treatment for appendicitis except in cases of perforation❗️
Preoperative antibiotics are essential (Cefuroxime + metronidazole).