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Blood
CD4 and Lymphocyte count
A 30 yo man from Zambia comes to the ED accompained by his girlfriend, he is HIV positive and he has pneumonia, he never done CD4 count. CD4 count of < 200 signifies a greater risk for opportunistic infections = recovery. I can’t wait for the reponse of the CD4 count… How much an absolute…
12 July 20110Comments
Chest
D-dimer and Aortic dissection
It’s 3.00 am when a 55 yo man is accompained to the ED by his wife because of sudden onset precordial pain, he has not clinical history, he does not smoke and he has an active life style, you find a normal blood pressure and clinical examination and a normal ECG, but the pain is…
17 May 20110Comments
why likelihood ratio
Why likelihood ratio
T he Likelihood Ratio (LR) is the likelihood that a given test result would be expected in a patient with the target disorder, compared to the likelihood that that same result would be expected in a patient without the target disorder. In other words… The LR of any test or clinical finding or symptom…
14 May 20110Comments
News
Why this blog?
A Life at Risk: what is the risk for a returning traveler with fever from an area at risk for malaria despite a negative blood smear? what is the risk for a patient with a right-sided pain to have a AAA that mimic a acute cholecystitis? what is the risk to a woman that complains…
20 January 20110Comments

The Emergency Physician

Septic Arthritis
Septic Arthritis and Arthrocentesis
Is cervical spine X-ray necessary if there is a distracting injury?

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