Desribe the compensatory mechanisms  that are maintaining blood pressure during blood loss?
912067
It sounds suspiciously like a homework question, but here we go...\n\nAt this point, her body is producing significant amounts of catecholamines, hormones such as adrenalin, etc. These hormones cause the heart rate in increase and the blood vessels to constrict. The idea is to get more blood to the vital organs.\n\nThere is a fairly narrow window here to resuscitate the patient. Once the blood pressure starts to fall, she's on a slippery slope in the wrong direction.\n\nThings to add for extra points:\nThe FIRST things that will change in a patient in hypovolemic shock (low blood volume) is a change in her mental status and a drop in urinary output. This is from reduced circulation to the brain and kidneys.\n\nGood luck!
9374
It does not lower the blood pressure but it prvents clotting of blood inside the blood vessels (Thrombosis).
270751
http://www.pursuit-performance.com.au/polar/html/polar/about_hrm.html\n\nhttp://en.wikipedia.org/wiki/Circulatory_system\n\nhttp://en.wikipedia.org/wiki/Blood_vessel
1102079
There are many factors that can cause hypertension (high blood Pressure.) Some of the factors that you can control to lower the BP are, Caffeine, smoking, Sodium, and stress. A regular sleep schedule, and exercise have also been shown to help in most cases.\n\nHe should also start taking his BP on a regular basis, and documenting it so if it can not be brought under control you have a base line to provide you doctor with.
1057383
blood circulation slows down when your body is at rest or sleeping
728515
the circulatory system (ie the blood circulatory system) can maintain the temperature of the body by vaso-dilation and vaso constriction of the blood vessels ( both deepseated and superficial) when there is cold or the weather is hot respectively.
835043
To reduce hypertension, my doctor recommended losing weight, eliminating caffeine (I now drink mostly decaf coffee and tea), reducing my sodium intake (use reduced sodium or "lite salt" products) and doing exercise (brisk walking was recommended), to bring down my high blood pressure.  \n\nMake sure you drink the recommended amount of water per day to flush excess sodium out of your system.  Any relaxing activity that helps you, like meditation, is good. \n\nStaying away from too much sugar and chocolate is good too.  Also, stay away from licorice.  It has something that increases blood pressure. Also, some herbal teas, like green tea, have lots of caffeine - as do many sodas, like Coke or Pepsi. Read the labels. Get the decaf version. \n\nI read that B vitamins are essential if you are under stress, so you might try a B-complex in addition to your daily multivitamin. \n\nIf nothing works and your pressure is still way above the normal range for your age - as it was with me - then your doctor must prescribe medication that fits the kind of high blood pressure you have.  There are several kinds - beta-blockers, ACE inhibitors, etc. It depends if it's the systolic or diastolic or both that are high.  My high blood pressure medication treats both since both readings are high.   \n\nMy doctor also recommends the 81mg daily aspirin therapy for me. I wouldn't do this unless prescribed since aspirin irritates the stomach and some people have had ulcers and digestive irritation as a result.\n\nYour doctor may have more suggestions for lowering your blood pressure before prescribing drugs. I would ask.
742035
excretory-filters the blood of toxic nitrogenous wastes from amino acid digestion, specifically urea, ammonia and uric acid in verbebrates. Kidney primarily does this job. It also maintains electrolyte and water homeostasis\n\nnervous- transmission of motor, sensory and integrative nerve impulses and action ptotentials throughout the body via brain, spinal cord and nerves to assist in homeostasis of many systems\n\nendocrin- production and secretion of hormones to be sent thru the blood to all cells of the body; works with the nervous system to maintain many forms of homeostasis\n\ndigestive- ingestion, mechanical and chemical digestion and absorption of nutirents (proteins, fats, carbs converted to amino acids, glucose, fatty acids) so that cells can utilize the smaller molecules for human metabolism, growth and misc homeostatic mechanism; digestive system will then eliminate any non-digested, non-absorbable wastes.
691641
115/75 is lower than normal.  Most of us come in at 120/80.  That being said, 140/90 is only just over the normal rate.\n\nYou can eat more fibre, and lower fat foods.  You can stop consuming alcohol, nicotine, and caffeine, if you already use any of those.  You should drink more water.  You should get exercise every day - go for a 30 minute walk five or six days a week.  If you can do more intense activity than walking, then do that.\n\nThere are also lots of prescription medication you can take that will help lower your blood pressure, but if you don't work on improving your lifestyle, there's no point taking the medication.
585893
Hypoproteinemia.  In protein malnutrition, you end up not having enough albumin in your blood.  The decreased oncotic pressure will result in your intravascular volume third-spacing into the tissues.\n\nYou will also get some sodium retention.  The decrease in intravascular volume will result in activation of the renin-angiotensin-aldosterone system, which will result in sodium retention.\n\nI think the effect of the hypoproteinemia will be much greater than the sodium retention though.
402311
fluid and electrolyte imbalances are the major compliactions secondary to dehydration or fluid volume deficit. all normal physiologic events are regulated by fluids and electrolytes by not having enough we tip the balnce of sodium, potassium, magnesium and other electrolytes causing weakness, headache, hypotension followed by hypertension due to body's compensatory mechanism. and lots other... if you're pregnant it may lead to premature labor
1022232
The pathophysiology of migraine headaches is not clearly understood. Growing evidence supports the role of neurogenic peptides, such as serotonin and dopamine, in the brain. These vasoactive neuropeptides stimulate an inflammatory cascade with the release of endothelial cells, mast cells, and platelets. This inflammation causes vasodilation and a perivascular reaction (local inflamation around the blood vessel). The vasodilation may promote this perivascular reaction, in the sense that when vessels dialate they become "leaky" allowing a greater amount of inflamatory mediators to escape. The blood brain barrier is higly sensative to inflamation and can be disrupted. You must also consider, that the brain is very sensative to any for of irritation.
583149
Well who said blood pressure is maintained, its very natural that ur blood pressure will become low as there is no blood to pass on from arteriole and capillaries. What ever blood is left is been pumped by heart which tries to cope up with normal pressure, this happens by increase in heartbeats. Faster the heartbeat, more pressure will be created and this way blood pressure is maintained.
550738
on drinking lot of water the osmotic pressure of blood falls and excess water is then absorbed by the nephron of the kidney and excreated out to maintain the osmocity of blood
125698
its a substance in the blood that keeps it from loosening or flowing continuously.
356321
Take off your shoes.  Sit on a confortable place. Close your eyes and press hard with the tips of your thumbs.  If you press your eyes, you releve blood pressure on the optic nerves, often related with headaches.
5167
The Frank Starling mechanism states that for every increase in fiber length, the heart will increase it's contractility.  This is the mechanism by which congestive heart failure takes place.  As the heart works harder against an increase in blood pressure, it dilates, this increases the fiber length and the heart contracts harder.  If it has to contract harder for long periods of time (high blood pressure for 20 years), it tires out and eventually, you will have lung edema, and poor peripheral perfusion.