What is tourniquet test and how it is performed?

What is tourniquet test and how it is performed?

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.

When is a tourniquet test done?

The test is part of the WHO algorithm for diagnosis of dengue fever. A blood pressure cuff is applied and inflated to the midpoint between the systolic and diastolic blood pressures for five minutes. The test is positive if there are more than 10 to 20 petechiae per square inch.

In which disease tourniquet test is used?

The tourniquet test (TT) is a physical examination maneuver often performed on patients suspected of having dengue. It has been incorporated into dengue diagnostic guidelines and is used in clinical studies.

What are the conditions which a positive tourniquet test is present?

A test is considered positive when 20 or more petechiae are observed in the 2.5 cm2. The tourniquet test reflects both capillary fragility and thrombocytopenia.

How do you read a positive tourniquet test?

How to do a Tourniquet Test

1. Inflate the cuff to a point midway between SBP and DBP and maintain for minutes. ( 100 + 70) ÷ 2 = 85 mm Hg.
2. Reduce and wait 2 minutes.
3. A positive test is 10 or more petechiae per 1 square inch.

What are the warning signs of dengue?

Warning Signs*

• Abdominal pain or tenderness.
• Persistent vomiting.
• Clinical fluid accumulation.
• Mucosal bleed.
• Lethargy or restlessness.
• Liver enlargement > 2 cm.
• Laboratory finding of increasing HCT concurrent with rapid decrease in platelet count.

Which organs are affected by dengue?

Based on the fact that the liver is one of the main organs affected by dengue35,36,37,38 and that lungs and heart are also important sites involved with the severe disease13,37,39,40,41, samples from all these three organs were considered.

What does a dengue rash look like?

A flat, red rash may appear over most of the body 2 to 5 days after the fever starts. A second rash, which looks like the measles, appears later in the disease. Infected people may have increased skin sensitivity and are very uncomfortable.

How many days does it take to recover from dengue?

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

What is the fastest way to recover from dengue fever?

Diet tips for dengue for fast recovery

1. Foods to eat.
2. Papaya leaf juice. Papaya leaf juice is a quite famous remedy for dengue fever.
3. Vegetable juices. Vegetables are rich in essential nutrients.
4. Coconut water. It is recommended to drink coconut water in dengue to avoid dehydration.
5. Herbal tea.
6. Neem leaves.
7. Foods to avoid.

Can you recover from dengue without medication?

No specific treatment for dengue fever exists. While recovering from dengue fever, drink plenty of fluids. Call your doctor right away if you have any of the following signs and symptoms of dehydration: Decreased urination.

What are the signs of recovery from dengue?

Some of the common symptoms of viral dengue fever include high fever, headache, body aches, weakness, joint pain, loss of appetite, cold and cough, nausea, vomiting and skin rashes and nose bleeding. Most patients suffering from dengue fever recover within two weeks.

What are the stages of dengue?

Dengue begins abruptly after a typical incubation period of 5–7 days, and the course follows 3 phases: febrile, critical, and convalescent.

How long does it take for dengue symptoms to appear?

Dengue causes flu-like symptoms and lasts for 2-7 days. Dengue fever usually occurs after an incubation period of 4-10 days after the bite of the infected mosquito.

How is dengue caused find out?

When a mosquito bites a person infected with a dengue virus, the virus enters the mosquito. Then, when the infected mosquito bites another person, the virus enters that person’s bloodstream and causes an infection.

Is Dengue transmitted by kissing?

When taking a blood meal, an infected female mosquito injects its saliva into the human host to prevent the host’s blood from clotting and to ease feeding. This injection of saliva infects the host with the dengue virus.

Can I have dengue without fever?

An overwhelming 75 – 90% of patients acquire dengue fever without any symptoms, not even fever.

How many times can you get dengue?

Dengue is caused by one of any of four related viruses: Dengue virus 1, 2, 3, and 4. For this reason, a person can be infected with a dengue virus as many as four times in his or her lifetime.

Are you immune to dengue after having it?

Recovery from infection by one dengue virus provides lifelong immunity against that particular virus serotype. However, this immunity confers only partial and transient protection against subsequent infection by the other three serotypes of the virus.

Is Dengue can repeat?

It is possible to get dengue more than once. At present there are 4 different strains of Dengue that are currently recognized. A patient can get dengue from two or more different strains of dengue. Hence a patient can suffer from dengue more than once.