10 results
Plasmodium Falciparum Blood Smear.
Key features suggesting Plasmodium falciparum:
- extreme parasitemia
- normocytic RBCs (vivax, ovale prefer big
P. falciparum causes ... ~75% of human malaria ... peripheral #clinical #microscopy ... #microbiology # ... malaria
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood ... infective endocarditis ... #differential # ... #Endocarditis # ... InfectiousDiseases #Microbiology
Plasmodium falciparum trophozoites (and crenated red blood cells) - Blood Smear

A classic presentation of Plasmodium falciparum
crenated red blood cells ... ) - Blood Smear ... Plasmodium falciparum malaria ... peripheral #clinical #microscopy ... #malaria #microbiology
Hemolytic Anemia - Differential Diagnosis Algorithm
Hereditary:
 • Peripheral blood smear + DAT + further History
 •
Hemolytic Anemia - Differential ... Peripheral blood smear ... Malaria, Clostridium ... Hemolytic #Anemia #Differential ... Diagnosis #Algorithm #causes
Capnocytophaga spp on Culture and Blood Smear
Associated w/ dog/human oral flora, can cause bacteremia in immunocompromised
and Blood Smear ... oral flora, can cause ... #Blood #Smear # ... clinical #microscopy ... #microbiology
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Hypercoagulable (APLAS) Microbiology ... Culture (+): ... Septic Emboli Cause ... Marantic (NTBE) Differential ... Treat underlying cause
Coccidioides on culture and microscopy

This was coccidioides sp (in this particular case was posadasii, although morphologically
Coccidioides on culture ... this particular case ... empty disjunctor cells ... #Coccidioides #culture ... #microbiology #
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
and Differential ... Hypercoagulable (APLAS) Microbiology ... Septic emboli cause ... Treat underlying cause ... #Differential #
Myelodysplastic Syndromes (MDS)

What?
Myelodysplastic syndromes are a group of disorders caused by blood cells that are poorly
Peripheral Smear ... Out Secondary Causes ... abnormal under a microscope ... blood count with differential ... Peripheral blood smear
Fever After International Travel

Infectious Disease:
• Endemic in either the destination or home region

Viral Syndromes:
Arboviral infections, a
function • Blood culture ... chest film; blood-smear ... dipstick test, microscopic ... examination, culture ... Fever #Travel #Differential