I and T are sensitive markers of myocardial necrosis, if MI presents to the ED after 24-48 hours. The sedimentation rate may stay elevated 2 weeks. Graded stress test for persistent episodic pain. Overreliance on ECGs. Abnormal alveolar-arterial oxygen gradient.
Pulmonary angiography is diagnostic gold standard.
Meningitis in children is primarily from bacteremia, otitis media, sinusitis, and mastoiditis. Diagnosis Early intervention is critical. Median time from presentation to ED to antibiotic administration is 3 hours, although 30 minutes has been suggested. SAH risk increases with age and peaks at age 50. More common in women and African Americans.