Wednesday, 23 September 2015

24 September, 2015

High haemoglobin levels in dengue patients indicate medical emergency

The deadly dengue scare is getting worst day-by-day. More than 3,791 people tested positive for dengue and 17 people reported dead in the capital city due to this viral disease. Although high fever for 3 – 4 days and low platelet count are the key signs of dengue, doctors say that high haemoglobin levels in the body could be a key symptom of severe dengue infection and if neglected might lead to medical emergency. It was believed that a dropping platelet count might increase the risk of mortality in dengue patients. However, in 20% of cases, the patient shows a stable platelet count even if haemoglobin level increase, signifying that the person is suffering from severe dehydration and thus need urgent medical attention.

Haemoglobin count – when to worry?
Haemoglobin is a blood protein that helps in the transportation of oxygen in the body. The normal level of haemoglobin per 100 ml of blood is 13 – 16 g in men and 11-13 g in women. Brig (Dr) Ajay Sharma, professor and head, department of medicine and clinical hematology at the Army (Research and Referral) Hospital in an Interview to TOI said that a patient with 10% increase in average haemoglobin level, even if the platelet count is within normal range should be rushed to hospital. He further exclaimed that most doctors wait for the platelet count to fall telling the patients not to worry, which is not right.

Dr Anoop Misra, chairman, Fortis C-doc Center Of Excellence for Diabetes, Metabolic Diseases and Endocrinology quoted that people suffering from dengue tend to show low fluid intake that in turn lead to dehydration. And when it becomes severe, the blood tissues dry up and show a high hematocrit (packed cell volume – pcv) level with increase haemoglobin levels. In some cases, this cal also lead to ascites – a condition in which fluid build-up occurs in the abdomen

How can this be treated?
If the blood levels of haemoglobin are high, the first line of treatment should be intravenous or oral administration of fluids to prevent further dehydration. In some cases, the patient might feel better although the temperature is within control and the platelet count might be low. But this is not a critical sign unless there is no active bleeding, says Brig (Dr) Sharma.  


24.09.2015



Kids that read mind also choose their teachers carefully!

Even young children can be selective in choosing from whom to learn and those with a good understanding of others’ thoughts are more selective, suggests new research. These children who can gauge what is going on in other people’s head are also likely to select the ‘accurate’ person to learn from, the findings showed. ‘We already know that some preschoolers are more likely to learn from individuals with a history of making accurate claims over individuals who have been inaccurate or ignorant,’ said the study’s senior author Diane Poulin-Dubois, professor at Concordia University in Canada.

‘Kids have also been shown to prefer learning from nicer, more confident or more attractive individuals — attributes that do not have anything to do with intelligence. We speculated that certain social-cognitive abilities might explain some of these learning differences,’ she said. To test the hypothesis, the researchers took 65 children through a series of tasks that tested their ability to learn new words, as well as their ‘theory of mind’ (ToM) — that is, the intuitive understanding of one’s own and other people’s minds or mental states.

The researchers tested whether the preschool-aged participants were more likely to learn new words from an accurate (with more verbal accuracy) or inaccurate individual. They also examined whether the children were more likely to learn from a physically strong individual over a weak one. The researcher found that children who could better understand other people’s mental states were more likely to believe the individuals with the greatest verbal accuracy, rather than those who had demonstrated the greatest strength. The study was published in the British Journal of Developmental Psychology.  



24.09.2015








Change is innovative and perhaps inevitable, but too much change is not good

Walterrean Salley


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