Can you define p-waves, Biology

Assignment Help:

Q. Can you define P-Waves?

Changes in P-wave morphology have been well described in resting tracings and are very useful in identifying right and left sided hemodynamic alterations due to both volume and pressure load. Careful study has revealed that it is P-wave deviation i.e. altered during ischaemia. As left ventricular end diastolic pressure increases with a loss of ventricular compliance, the left atrial wall distended by increasing pressure, which apparently slows conduction through the atrium and this prolongs the depolarization wave. The low amplitude of the P-waves however, makes the measurements difficult, which probably accounts for the low sensitivity of these findings. When the other signs of ischaemia are absent, the deviation of P-wave from rest to exercise should be measured (best in lead 2). An increased duration of greater than 20 milliseconds provides a specificity of 64 per cent.


Related Discussions:- Can you define p-waves

Type of skull, what type of skull does amphibians possess in general?

what type of skull does amphibians possess in general?

What is emulsion, Emulsions  You may have eaten Mayonnaise. Some  of yo...

Emulsions  You may have eaten Mayonnaise. Some  of you may also know how it is made. Mayonnaise is a liquid in liquid  dispersion, in fact a true  emulsion.  A true emulsion re

Detailed explanation of effects of air pollution, On living organism  ...

On living organism           Air pollution causes following effects on living organism: (a)   Effects on humans: 1.      Carbon monoxide reduces the oxygen carrying cap

Human respiratory system - nasal chamber, NASA L CHAMBER - External...

NASA L CHAMBER - External nares are 2 in number, i.e., dirhynous. Situated at lower side of nose. Open into nasal chamber. Nasal chamber opens into pharynx by internal n

What is the sterile technique, Sterile Technique Every effort should be...

Sterile Technique Every effort should be made to conduct implant surgery under sterile operating conditions. Chlorhexidine 0.2% is used as a pre-operative mouthwash and skin pr

What is dry mass, What is dry mass? When biomasses are compared often t...

What is dry mass? When biomasses are compared often the method of dry mass is used. The dry mass is the total mass less the water mass of an individual. The total mass is also

Dna double helix , In the year of 1953, Watson and Crick worked out the...

In the year of 1953, Watson and Crick worked out the 3-D structure of DNA, beginning from X-ray diffraction photographs   taken through Wilkins and Franklin. They decreased which D

What are the material used in biotolerant, Biotolerant Metals :- Co- Cr...

Biotolerant Metals :- Co- Cr Alloys, Stainless Steel, Gold,  niobium, tantalum Polymers:-  Polyethylene, polytetrafluorethylene, polyamide, polymethylmethacrylate, polyureth

Write two functions of proteins in biological system, Write two functions o...

Write two functions of proteins in biological systems. The important functions of proteins in biological systems are as follows: enzymes membrane carriers anti

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd