Dengue quiz for med student

1. Which of the following statements best describes the current trend of dengue infection in Thailand?

• The incidence is decreasing every year due to improved vector control.

• Dengue is now only endemic in rural provinces.

• Over the past decade, DENV-1 and DENV-2 have increased, whereas DENV-3 and DENV-4 have declined.

• Dengue has been completely eliminated in most regions.

What is the primary vector responsible for the transmission of dengue virus in Thailand?

• Culex

• Anopheles

• Aedes aegypti

• Aedes albopictus

Which dengue virus serotype is associated with a higher risk of severe disease upon secondary infection?

• DENV-1

• DENV-2

• DENV-3

• DENV-4

Which of the following clinical signs is most commonly observed during the critical phase of dengue infection?

• Rash

• Petechiae

• Plasma leakage

• Persistent vomiting

Which of the following laboratory findings is most indicative of dengue hemorrhagic fever?

• Elevated white blood cell count

• Increased hematocrit with thrombocytopenia.

• Thrombocytosis with low hematocrit

• Elevated liver enzyme

What is the recommended initial laboratory test for early diagnosis of dengue infection during the first few days of febrile phase?

• NS1 antigen detection

• Dengue IgM

• Dengue IgG

• PCR for dengue virus

Which of the following is a major complication that requires prompt fluid resuscitation in dengue patients?

• Pleural effusion

• Febrile seizure

• Dengue hemorrhagic fever grade III

• Respiratory distress

Which fluid is recommended for initial resuscitation in a child with dengue shock syndrome?

• 5% dextrose in water

• Normal saline

• Ringer's lactate

• Dextran-40

Which of the following best describes the role of tourniquet test in dengue diagnosis?

• Definitive diagnosis of dengue shock

• Screening tool to detect abnormal vascular permeability

• Differentiates between dengue and sepsis

• Confirms plasma leakage