What do you know about cardiothoracic ratio, Biology

Assignment Help:

Q. What do you know about Cardiothoracic ratio?

The cardiothoracic ratio (CTR) shown in figure is the transverse cardiac diameter (the horizontal distance between the most rightward and leftward borders of the heart seen on a PA chest radiograph) divided by the transverse chest diameter (measured from the inner rib margin at the widest point above the costophrenic angles on a PA chest film).

A cardiothoracic ratio of more than 50 per cent is generally considered abnormal in an adult. It may be upto 55 per cent in blacks and Asians and 60 per cent in neonates and the elderly. The cardiac diameter alone can also be measured. It is less than 13.5 cm in 90 per cent of males and 12.5 cm in 90 per cent of females. A change in diameter of greater than 1.5 cm between two radiographs is considered significant.

546_What do you know about Cardiothoracic ratio.png


Related Discussions:- What do you know about cardiothoracic ratio

Why some trees lose their green color in the autumn, Q. Why some trees lose...

Q. Why some trees lose their green color in the autumn? In autumn nights longer and days become shorter thus there is a reduction of the photosynthesis rate and some plants pre

Define agar syringe or agar sausage method, Define Agar Syringe/Agar Sausag...

Define Agar Syringe/Agar Sausage Method? Agar syringe method involves 100 ml syringe, which is filled with agar. A layer of agar is pushed beyond the end of the barrel by means

Explain role of messenger the ribosomes, Q What is the role of messenger th...

Q What is the role of messenger the ribosomes and RNA for the protein synthesis? The mRNA is produced within the cellular nucleus and migrates to the cytoplasm where associated

What is the autophagic intracellular digestion, Q. What is the autophagic i...

Q. What is the autophagic intracellular digestion and why is this type of intracellular digestion intensified in an organism undergoing starvation? Autophagic intracellular dig

What is an etiological agent of disease, What is an etiological agent of di...

What is an etiological agent of disease? An etiological agent of disease is the agent that causes the disease. It might be a living being, substance or environmental fact.

Describe the effects of the failure of the pancreas, (a) Name the condition...

(a) Name the condition and (b) describe the effects of the failure of the pancreas to produce sufficient-insulin. (c) How is this condition treated? .

Phylem porifera, please give us this phylem''s example...

please give us this phylem''s example...

Fertilisation, Explain how the uterus supports the development of a baby du...

Explain how the uterus supports the development of a baby during gestation

Which is the first heart chamber into which blood enters, Q. Which is the f...

Q. Which is the first (human) heart chamber into which blood enters? Where does the blood go after passing that chamber? What is the name of the valve that separates the compartmen

What is enteropathogenic escherichia coli, Escherichia coli is generally re...

Escherichia coli is generally regarded as part of the normal flora of the human intestinal tract and that of many animals. Serotypes of E. coli which have been implicated in human

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