147 results
Features of Plasmodium falciparum Malarial Infection

#Plasmodium #falciparum #Malaria #Signs #Symptoms #InfectiousDiseases
Plasmodium falciparum Malarial ... Plasmodium #falciparum #Malaria
Malaria in Returning Travelers

Signs and Symptoms for Malaria with Likelihood Ratios 

Does this patient have malaria?
Malaria in Returning ... and Symptoms for Malaria ... this patient have malaria ... #Diagnosis #Malaria
Fever in the Returning Traveler - History
Exposure History:
 • Street foods / Local water: entenc fever,
Arthropod bites: malaria ... : < 7 days: malaria ... 7-21 days: malaria ... > 21 days: malaria ... / Continuous: malaria
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis
 • Infection: Extrapulmonary tuberculosis, Abscess, Endocarditis,
Causes of Fever ... Lemierre's syndrome), Malaria ... . autoimmune): Lupus ... vasculitis to cause ... Differential #Diagnosis #causes
Plasmodium Falciparum Blood Smear.
Key features suggesting Plasmodium falciparum:
- extreme parasitemia
- normocytic RBCs (vivax, ovale prefer big
P. falciparum causes ... ~75% of human malaria ... cases - Banana-shaped ... #microbiology #malaria
Faget Sign - Pulse-Temperature Dissociation
Causes of Relative Bradycardia
 • Infectious Causes: Legionella, Psittacosis, Q fever, Typhoid
Dissociation Causes ... • Infectious Causes ... Typhus, Babesiosis, Malaria ... Non-Infectious Causes ... differential #diagnosis #causes
Causes of Relative Bradycardia - Note the propensity for intracellular organisms.
Infectious: 
Legionella, Psittacosis, Q fever, Typhoid
Causes of Relative ... Typhus, Babesiosis, Malaria ... #bradycardia #Causes
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
bacteremia • Malaria ... endocarditis, malaria ... or no fever • Malaria ... fever (Falciparum malaria ... hemolysis) • Malaria
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Extravascular Causes ... usually IgG) (e.g. lupus ... • Infections: Malaria ... Extravascular #Causes
P. falciparum ring forms on a thin smear

 - Dr. Christina Dean
@deanchr3

#Plasmodium #falciparum #Rings #Smear #Hematology
Clinical #Pathology #malaria