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MT 38 Lab - Dengue NS1 Antigen Testing

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Questions and Answers

What is considered Dengue without warning signs according to the W.H.O classification?

Fever with Rashes and aches

Fever with positive tourniquet test (correct)

Fever with nausea and vomiting

Fever with leukopenia and aches

Which vector is more common in transmitting Dengue Fever?

Aedes aegypti (correct)

Ixodes scapularis

Culex pipiens

Anopheles gambiae

What is a characteristic feature of Dengue Shock Syndrome (DSS)?

Elevated platelet count

Hypertension

Bradycardia

Bleeding tendencies (correct)

Which of the following is NOT one of the warning signs of severe Dengue according to W.H.O classification?

Positive tourniquet test Signup and view all the answers

What is the most common method for detecting Dengue Virus antigen?

Enzyme-linked immunosorbent assay (ELISA) Signup and view all the answers

How many petechiae per square inch are considered positive for the tourniquet test?

10 or more Signup and view all the answers

What is a common clinical fluid accumulation observed in Dengue with warning signs?

Ascites Signup and view all the answers

Which of the following is not a symptom associated with Dengue with warning signs?

Muscle pain Signup and view all the answers

What is a characteristic of Severe Dengue according to the W.H.O classification?

Impaired consciousness Signup and view all the answers

What method can be used to detect Dengue Virus antigens in tissue?

Immunofluorescence assay Signup and view all the answers

Which body fluid can be used for detecting DENV nucleic acid according to the text?

Cerebrospinal fluid (CSF) Signup and view all the answers

IgM/IgG anti-DENV can be detected by immunoassay. Which of the following body fluids can this detection be conducted on?

Serum or CSF Signup and view all the answers

Which phase of dengue virus infections is NS1 detectable according to the text?

During the acute phase Signup and view all the answers

What does a negative NS1 test result indicate?

No current infection Signup and view all the answers

What should be done if someone tests negative for NS1 but suspects a recent dengue exposure?

Check for dengue IgM antibodies Signup and view all the answers

What does a positive result on the NS1 test confirm?

The presence of a recent dengue infection Signup and view all the answers

What does the text suggest about second-time dengue infections?

They are more severe due to the same serotype exposure Signup and view all the answers

What is the principle behind the Abbott Dengue Duo Test Kit according to the text?

Immunochromatography /Lateral Flow Immunoassay Signup and view all the answers