What are the signs of cardiac tamponade, Biology

Assignment Help:

Q. What are the Signs of cardiac tamponade?

The clinical presentation will be that of a low output state with anxiety, restlessness, dyspnoea, sweating, cold extremities and drowsiness.

Signs

a) Elevated Jugular venous pressure (JVP)-With the increase in intrapericardial pressure the JVP also gets elevated with prominent ‘X' descent and reduced or absent ‘Y' descent.

b) Tachypnoea.

c) Sinus tachycardia to compensate the low stroke volume.

Pulsus Paradoxus is a Feature of Cardiac Tamponade: Pulsus paradoxus is diagnosed if decline in systolic pressure during normal inspiration exceeds 10 mm. of Hg. (Pulsus paradoxus is an exaggerated normal response). In extreme cases, the pulse may not be felt during inspiration. Though pulsus paradoxus can be detected by palpation of pulse, blood pressure recording during inspiration and expiration and demonstrating the decline of more than 10 mm. of Hg. in systolic pressure during inspiration confirms this physical finding. Mechanism: During inspiration there is increase in systemic venous return to the right side of the heart resulting in greater right ventricular filling. Because of the elevated intra - pericardial pressure in cardiac tamponade, in order to accommodate the extra volume of blood during inspiration in the right ventricle, the interventricular septum is pushed to the left ventricle resulting in reduced left ventricular filling. The decreased pulmonary venus return during inspiration adds on to the reduced left ventricular volume which results in reduced stroke volume and reduced systolic pressure.

Pulsus paradoxus can occur in other conditions like effusive constrictive pericarditis and obstructive pulmonary disease.


Related Discussions:- What are the signs of cardiac tamponade

Thymus, THYMU S - It is derived from the endoderm of the embryo. S...

THYMU S - It is derived from the endoderm of the embryo. Structur e . The thymus gland is located in the upper part of the thorax near the heart. It is a soft, pinkish, b

Who was gregor mendel, Who was Gregor Mendel? Mendel is considered the ...

Who was Gregor Mendel? Mendel is considered the father of Genetics. He was a monk, biologist and botanist born in Austria in 1822 and who died in 1884. During the years 1853 to

What are the fundamental constituents of the cell membrane, Q. What are the...

Q. What are the fundamental constituents of the cell membrane? The cell membrane is formed of lipids, carbohydrates and proteins. The membrane lipids are phospholipids, a sp

Explain biotin (vitamin h), Biotin (vitamin H) It was revealed  that eg...

Biotin (vitamin H) It was revealed  that egg yolk could prevent dermatitis and emaciation  in  rats that were kept on  raw  egg white a$ the main protein source. The factor of

Morphological changes, Morphological changes Regressive changes -Thes...

Morphological changes Regressive changes -These changes include the gradual reduction and ultimate disappearance of all those larval structures or organs that become redundan

What percentage of the offspring will be tall, Tall (T) plants are dominant...

Tall (T) plants are dominant and short (t) plants are recessive. Two heterozygous tall plants are crossed. What percentage of the offspring will be tall?

Define the effects of dietary fibre, Define the Effects of Dietary Fibre? ...

Define the Effects of Dietary Fibre? After reviewing the properties of fibre, we will now study various physiological effects of fibre, as it passes through the gut. The effect

Agar - agar, AGA R - AGAR It is cell wall mucopolysaccharide of some r...

AGA R - AGAR It is cell wall mucopolysaccharide of some red algae (e.g. Gelidium, Gelidiella, Gracillaria). Agar is used as culture medium, thickener, stabilizer and as lax

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