62 results
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
Tuberculosis Testing LATENT ... used to exclude pulmonary ... #Workup #TB #Latent ... #Active #LatentTB ... #ActiveTB #InfectiousDiseases
Strongyloides fuelleborni Lifecycle
Free-Living Cycle
1) Eggs containing rhabditiform larvae passed in feces.
2) Rhabditiform larvae hatch in environment.
Parasitic Cycle ... become adults. 8) Parasitic ... intestine 9) Parasitic ... #diagnosis #pathophysiology ... #infectiousdiseases
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
tuberculosis (LTBI) Pathophysiology ... Tuberculosis Diagnosis ... and Culture • CXR ... disease • Check CXR ... Tuberculosis #TB #Diagnosis
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
tuberculosis (LTBI) Pathophysiology ... Tuberculosis Diagnosis ... and Culture • CXR ... disease • Check CXR ... Tuberculosis #TB #Diagnosis
Causes of Pediatric Wheezing - Differential Diagnosis Algorithm
CXR Abnormal:
 • Pulmonary Sequestration
 • Congenital Adenoid Cystic
- Differential Diagnosis ... Algorithm CXR ... Abnormal: • Pulmonary ... : • Asthma* Positive ... #Differential #Diagnosis
Echinococcus Life Cycle
1) Adult in small intestine eggs
2) Embryonated egg in feces
3) Oncosphere hatches; penetrates intestinal
Echinococcus #LifeCycle #diagnosis ... #pathophysiology ... #infectiousdiseases ... #cdc #parasite
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Differential Diagnosis ... : - ANCA-positive ... • Labs: CBC, cr ... , anti-CCP • CXR ... #differential #diagnosis
Leishmaniasis Life Cycle
1) Sandfly takes a blood meal (injects promastigote stage into the skin)
Human Stages:
2) Promastigotes
Leishmaniasis #LifeCycle #diagnosis ... #pathophysiology ... #infectiousdiseases ... #cdc #parasite
Strongyloides Stercoralis Lifecycle
Free-Living Cycle:
1) Rhabditiform larvae in the intestine are excreted in stool. 
2) Development into
Parasitic Cycle: ... stercoralis #LifeCycle #diagnosis ... #pathophysiology ... #infectiousdiseases ... #cdc #parasite
Malaria - Plasmodium Life Cycle
1) Mosquito takes a blood meal (injects sporozoites)
Human Liver Stages
2) Infected liver
Plasmodium #lifecycle #diagnosis ... #pathophysiology ... #infectiousdiseases ... #cdc #parasite