Cardio =======> Cua dio!!!
Cua dio = Got shocked
Can't believe what just happened this morning... Was a disaster... I was attacked by some unknown questions and I had no means of retaliating... Followed by that I had several symptoms that I eventually managed to handle... Here's what you can expect if you happen to have these symptoms...
When you start seeing the questions and you got a big shock, the very VERY least you can get is an anaphylatic shock. Anaphylatic shocks are potentially dangerous so you'll probably not get it unless you have a weak heart to begin with. Your body will respond by lowering your blood pressure very much, having said that, you're venous return will be low as well. Because there's a low venous return, you'll have a high V/Q matching and your pulmonary capillaries will further dilate, increasing the amount of blood flowing through. Not to mention that your end diastolic volume will be low and with that can cause low cardiac output (CO). Because mean arterial pressure (MAP) is measured by CO x total peripheral resistance (TPR), and BECAUSE with vasodilation, TPR is lower with increasing radius and thus MAP is low.
Because of the nature of the scare, the low pressure can kick in for some time. The body cannot handle the long low pressure and will turn to other means. Baroreceptors initiate increasing noradredaline and adredaline into the systems to try vasoconstricting the vessels to increase MAP. It also reduces the parasympathetic response onto the heart so that the heart can increase in heart rate. Angiotensin II, endothelin and vessopressin CAN also be activate to vasoconstrict and retain water/salt balances in the body, increasing the blood volume. Be very cautious that if you have a light headed feeling, just put your head onto the desk and try to relax. Because of the initial low blood pressure, blood tends to flow to the feet very fast, leaving little blood flow to the brain. They brain must have a constant flow of blood otherwise it can 'die'. Usually the patient will just proceed to syncope, but of course, we wouldn't want that in the exam hall, would we? We also don't want you to take this module again, do we? o.O
Besides CO, you will experience some light headed sensation because of hyperventilation. Hyperventilation increases the oxygen content and decreases the carbon dioxide content in your blood. This can cause respiratory alkalosis when your bicarbonates are reduced and your pH values shifts to a higher one. The shift can disrupt calcium balances and cause cramps. The best way is for you to relax and breathe slowly. Think happy thoughts, think about what's going to happen after the paper or something like that. Your carotid chemoreceptors will detect the change in pH and assist you in the alkalosis. What could really hit you very hard now is when you see the lecturer next to you and looking eye to eye with you before giving a sinister smile at you. Atrial or worse ventricle fibrillation can occur. By then, you should count on your neighbour to start calling the nearest hospital before you collapse.
We advice everyone taking the things easy and practice good ventilation. Don't look up at your lecturer if you already have these symptoms. If you your lecturer asked whether you are ok, just nod and pretend that you are trying to do the questions. That will shoo them away, in fact, that lessens the chance of you getting fibrillation, congrats, you made it. In very special cases, some patients do experience phaeochromocytoma, a tumour that resides at your adrenal medulla to excrete explosive amounts of adredaline and that could spell out berserk reaction. He/she might start going on a rampage and cause much more danger. We hope that if anyone who cannot take the paper, please don't try to resist, just tear the paper... That'll do you much better and save more lives that way... =)
P.S. This is all entertainment ya? I apologize to anyone who mistook the above information as real.
Words from Dr Jo
The Mixed Boy
Can't believe what just happened this morning... Was a disaster... I was attacked by some unknown questions and I had no means of retaliating... Followed by that I had several symptoms that I eventually managed to handle... Here's what you can expect if you happen to have these symptoms...
When you start seeing the questions and you got a big shock, the very VERY least you can get is an anaphylatic shock. Anaphylatic shocks are potentially dangerous so you'll probably not get it unless you have a weak heart to begin with. Your body will respond by lowering your blood pressure very much, having said that, you're venous return will be low as well. Because there's a low venous return, you'll have a high V/Q matching and your pulmonary capillaries will further dilate, increasing the amount of blood flowing through. Not to mention that your end diastolic volume will be low and with that can cause low cardiac output (CO). Because mean arterial pressure (MAP) is measured by CO x total peripheral resistance (TPR), and BECAUSE with vasodilation, TPR is lower with increasing radius and thus MAP is low.
Because of the nature of the scare, the low pressure can kick in for some time. The body cannot handle the long low pressure and will turn to other means. Baroreceptors initiate increasing noradredaline and adredaline into the systems to try vasoconstricting the vessels to increase MAP. It also reduces the parasympathetic response onto the heart so that the heart can increase in heart rate. Angiotensin II, endothelin and vessopressin CAN also be activate to vasoconstrict and retain water/salt balances in the body, increasing the blood volume. Be very cautious that if you have a light headed feeling, just put your head onto the desk and try to relax. Because of the initial low blood pressure, blood tends to flow to the feet very fast, leaving little blood flow to the brain. They brain must have a constant flow of blood otherwise it can 'die'. Usually the patient will just proceed to syncope, but of course, we wouldn't want that in the exam hall, would we? We also don't want you to take this module again, do we? o.O
Besides CO, you will experience some light headed sensation because of hyperventilation. Hyperventilation increases the oxygen content and decreases the carbon dioxide content in your blood. This can cause respiratory alkalosis when your bicarbonates are reduced and your pH values shifts to a higher one. The shift can disrupt calcium balances and cause cramps. The best way is for you to relax and breathe slowly. Think happy thoughts, think about what's going to happen after the paper or something like that. Your carotid chemoreceptors will detect the change in pH and assist you in the alkalosis. What could really hit you very hard now is when you see the lecturer next to you and looking eye to eye with you before giving a sinister smile at you. Atrial or worse ventricle fibrillation can occur. By then, you should count on your neighbour to start calling the nearest hospital before you collapse.
We advice everyone taking the things easy and practice good ventilation. Don't look up at your lecturer if you already have these symptoms. If you your lecturer asked whether you are ok, just nod and pretend that you are trying to do the questions. That will shoo them away, in fact, that lessens the chance of you getting fibrillation, congrats, you made it. In very special cases, some patients do experience phaeochromocytoma, a tumour that resides at your adrenal medulla to excrete explosive amounts of adredaline and that could spell out berserk reaction. He/she might start going on a rampage and cause much more danger. We hope that if anyone who cannot take the paper, please don't try to resist, just tear the paper... That'll do you much better and save more lives that way... =)
P.S. This is all entertainment ya? I apologize to anyone who mistook the above information as real.
Words from Dr Jo
The Mixed Boy
posted by -=The Mixed Boy=- at 12/04/2007 03:09:00 PM
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