Malaria Flashcards
Malaria
Most important parasitic disease in humans
Infection of RBC w/ protozoan parasites inoculated into the human host by a feeding female anopheline mosquito
Erythrocytic cycle
responsible for disease
rupture of schizonts and release of merozoites present clinically as paroxysms
Responsible for disease relapses
Hypnozoites
Plasmodium species
P. falcifarum P. vivax P. ovale P. malariae P. knowlesi
Severe malaria
P. falcifarum
P. falcifarum
Trophozoites seen as ring forms
banana shaped gametocytes
Maurer dots
P. vivax
irregularly shaped large rings and trophozoites
enlarged erythrocytes
Schuffner dts
can cause RELAPSE
P. ovale
infected erythrocytes, enlarged oval w/ tufted ends
Schuffner dots
can cause RELAPSE
P. malariae
band/rectangular forms of trophozoites
not enlarged erythrocytes
P. knowlesi
not enlarged erythrocytes
difficut=l to accurately diagnose by microscopy because of the morphologic similarity of the trophozoites to P. falcifarum and P. malariae
Classic malaria paroxysms
cold stage (chills) hot stage (fever spikes) sweating stage
Gold standard for the diagnosis of malaria
thin and thick smear
CBC malaria
normocytic normochromic anemia
thrombocytopenia
ABG malaria
HAGMA
dec bicarbonate
inc lactate
First line drug for confirmed uncomplicated and severe (IV formulation) P. falcifarum malaria
Artemether-Lumefantrine