What are the differential diagnosis of dengue?

Dengue must be carefully differentiated from preeclampsia during pregnancy. An overlap of symptoms and signs, including thrombocytopenia, impaired liver function, capillary leak, ascites, and decreased urine output may make this clinically challenging. Definitive diagnosis is confirmed via serology.

What is similar to dengue fever?

The symptoms of chikungunya are similar to those of dengue and Zika, diseases spread by the same mosquitoes that transmit chikungunya.

How can you tell the difference between dengue fever and dengue hemorrhagic fever?

Despite the name, the critical feature that distinguishes DHF from dengue fever is not hemorrhaging, but rather plasma leakage resulting from increased vascular permeability. EVALUATE the patient’s heart rate, capillary refill, skin color and temperature, peripheral pulse volume, pulse pressure, and blood pressure.

WHO dengue diagnostic criteria?

Case definition for dengue shock syndrome All of the above four criteria for DHF must be present, plus evidence of circulatory failure manifested by: Rapid and weak pulse, and • Narrow pulse pressure (20 mmHg (2.7 kPa) ) or manifested by: • Hypotension for age,1 and • Cold, clammy skin and restlessness.

Where do dengue rashes start?

Rash in dengue fever is a maculopapular or macular confluent rash over the face, thorax, and flexor surfaces, with islands of skin sparing. The rash typically begins on day 3 and persists 2-3 days.

How can dengue be detected by tourniquet?

This test is performed by inflating a blood pressure cuff on the upper arm to midway between diastolic and systolic blood pressures for 5 minutes. The results are considered to be positive if more than 20 petechiae per square inch are observed on the skin in the area that was under pressure.

Which is worse dengue or chikungunya?

Swelling and pain is high in Chikungunya as compared to that in Dengue. Chikungunya can cause tremendous joint pain. Whereas Dengue can cause bleeding in some cases, breathing problems, etc.

What are the symptoms of dengue and chikungunya?


Table 1. Signs and symptoms of chikungunya and dengue fever
Chikungunya Dengue fever
Initial symptoms Fever, arthralgia, myalagia, headache, conjunctival injection, photophobia, rash. Fever, arthralgia, rash, headache.

What is the pattern of fever in dengue?

The fever pattern is classically biphasic or “saddleback,” breaking and then returning for 1 or 2 more days. In some people, the disease proceeds to a critical phase as the fever resolves. This phase is characterized by significant, diffuse leakage of plasma typically lasting 1–2 days.

How many days the dengue fever lasts?

Symptoms of dengue typically last 2–7 days. Most people will recover after about a week.

Can dengue be detected on first day of fever?

Molecular tests for dengue virus (PCR)—detect the presence of the virus itself; these tests can diagnose dengue fever up to 7 days after the onset of symptoms and can be used to determine which of the 4 different serotypes of dengue virus is causing the infection.

How do you confirm dengue?

If an infection is suspected, you will get a blood test to check for the dengue virus. During a blood test, a health care professional will take a blood sample from a vein in your arm, using a small needle. After the needle is inserted, a small amount of blood will be collected into a test tube or vial.