Malaria Flashcards

(42 cards)

1
Q

What is a parasitic infection caused by the introduction of the protozoan organisms into the blood by the bite of a female anopheles mosquito?

A

Malaria

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2
Q

Female Anopheles mosquito bites human, what is injected into the human when bitten?

A

Sporozoites

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3
Q

Sporozoites enter parenchymal cells of liver to become

A

schizonts

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4
Q

Development in liver is called ________ cycle

A

Pre-erythrocytic cycle

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5
Q

Further development in the liver after RBC invasion, is called ________ cycle

A

Exoerythrocytic cycle

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6
Q

Inside parenchymal cells, Schizonts rupture, releasing

A

merozoites

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7
Q

merozoites burst out of liver cells to invade ______.

A

RBCs

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8
Q

Merozoites develop to form immature _______.

A

trophozoites (ring stage)

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9
Q

Mature trophozoites then develop into

A

schizonts

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10
Q

Schizonts rupture in RBCs, releasing _______.

A

merozoites

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11
Q

In what stage does differentiation occur into males and females

A

gametocytes

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12
Q

Beginning of sexual reproduction - production of

A

zygote

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13
Q

Fertile zygote form

A

oocyst

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14
Q

Oocyst matures, ruptures, and releases

A

sporozoites

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15
Q

What are the 4 types of malaria found in humans?

A
  1. Falciparum
  2. Vivax
  3. Ovale
  4. Malariae
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16
Q

Which is the most fatal malaria?

A

Falciparum

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17
Q

When does fever occur in Falciparum?

A

every 48 hours or every 2nd day.

18
Q

Which is the most common malaria?

19
Q

When does fever occur in Vivax?

A

Fever every 48 hours or every 2nd day

20
Q

When does fever occur in Ovale?

A

every 48 hours or every 2nd day

21
Q

When does fever occur in Malariae?

A

every 72 hours or every 3rd day

22
Q

Benign Tertian

A

Vivax and Ovale

23
Q

Malignant Tertian

24
Q

Benign Quartan

25
What color tube is used for malaria?
Purple
26
light blue circular structures with red chromatin dot?
falciparum
27
blood sample for malaria may be stored for up to?
3 days
28
must be stored
2°C to 30°C | (36-86°F)
29
how many microliters of blood are collected for malaria?
15
30
how many drops of Reagent A do you place on the pad for malaria?
2 drops
31
Malaria: Before the mixture reaches the top of the test strip, add how many drops?
4 drops
32
Read Malaria test results at
15 minutes
33
T1 = Positive for
Falciparum
34
T2 = Positive for
Vivax, Malariae, Ovale
35
T1 & 2 = Positive for
Falciparum and other types
36
Only the C line:
negative
37
if the Control “C” line does not appear
test is invalid
38
Samples must be obtained when patient is
febrile
39
Malaria must be confirmed with
thick and thin smear sent to NEPMU
40
For best results when should a specimen for Malaria be collected?
immediately after onset of fever
41
Smears should be done frequently but no more than
hourly
41
Smears should be done frequently but no more than
hourly