Archive for June, 2008

Assessment of Blood Pressure

Sunday, June 22nd, 2008

It is a measure of the pressure exerted by blood on the artery walls in its drive through the arteries. Because the blood moves in waves, two types of measures of pressure:
Systolic pressure is the blood due to contraction of the ventricles, ie the maximum pressure and the diastolic pressure is the pressure that remains when the ventricles relax, this is the minimum pressure.

The mean arterial pressure (MAP) was calculated using the following formula: systolic pressure – diastolic pressure / 3 + diastolic pressure. The PA is determined by cardiac output and peripheral vascular resistance, hence the PA reflects both the stroke volume of blood as the elasticity of arterial walls.

RECOMMENDATIONS

  • The arm and forearm should be naked, or at least the clothes should not exert improper compression.
  • The cuff size should be chosen according to the diameter of the arm. The relative disparity between the size of the arm and the cuff may be cause of error, in very obese arms usually falsely elevated values are obtained very thin arms and obtained values below normal.

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Fever in Children

Tuesday, June 3rd, 2008

It starts in the brain
To really understand what is fever, you need to know the hypothalamus. The hypothalamus is the brain center. Think of it as the body’s thermostat, the device is in the walls of many houses and used for adjusting the temperature of the heating and / or air conditioning. The hypothalamus knows what temperature should be the body of a person and sends messages to the body to be set and maintained at that temperature.
The body temperature of most humans is around 37 ° C (98.6 ° Fahrenheit). Some people will have a normal temperature a little higher, others will have it a little lower.
The body temperature of most people also varies slightly during the day: it will be a little lower in the morning and a little higher in the evening.

What is fever?
Fever is not a disease but the body’s response to an abnormal situation. In children, most commonly it is caused by an infection, so it is not so much control fever and properly diagnose and treat the infection. There are even plenty of evidence showing that moderate fever facilitates the body’s defense mechanisms against infections.
Other causes of fever can be dehydration, excess clothing, especially in newborns, drug reaction, allergy, and very occasionally, some tumors. (more…)

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