mercredi 8 juin 2011

Specimen and Single Photon Emission Computed Tomography

The metabolism of nitroglycerin N0 selection due to the action of thiol enzymes, with the depletion of which relate ryh addictive nitroglycerin. Therefore does not recommend intravenous drip of sodium nitroprusside more than 18-34 hours Activators of potassium channels - diazoxide, minoxidil-selective expansion satisfy the arterial vessels and lower blood pressure, frequency of contractions of the heart reflexly increases. As an antihypertensive nitroglycerin solution administered intravenous drip commissioning of The drug used for relief hypertensive crises, as well as to reduce the load on the heart in acute heart failure. The drug is used in hypertensive crises, acute left ventricular non-sufficiency, as well as here controlled hypotension during surgical operations. In this activity fosfolambana reduced. Duration of action approximately 24 hours In response to a Simplified Acute Physiology Score in blood pressure reflexly activated sympathetic innervation is - there is pronounced reflex tachycardia, increased activity of the renin-angiotensin-aldosterone system, resulting in there delay in body Na + and water. With systematic practice of cause stable hypotensive effect, prevent a sharp rise in blood pressure, practically do not cause orthostatic hypotension, in addition to possess antihypertensive properties, antianginal and antiarrhythmic properties. Nitroglycerine dilates predominantly venous, commissioning of to a lesser extent arterial vessels (believe that the level of thiol enzymes, which are under the influence of nitroglycerin released N0, in veins than in arteries). In contrast, nitroglycerin sodium commissioning of extends equally to arterial and venous-courts. Expansion of blood vessels associated with activation of K + channels in the membranes of smooth muscle fibers of the arteries. Radrenoblokatorov side effects: bradycardia, heart failure, in particular, the difficulty of atrioventricular conduction reduction of HDL cholesterol in the blood plasma, increased bronchial tone and peripheral spherical vessels (less pronounced in ? 1 blockers), strengthening commissioning of agents, decreased physical activity. N0 stimulates vascular smooth muscle guanylate cyclase, increased levels of cGMP, which activates protein kinase G. Drugs administered orally for a systematic treatment hypertension. For a systematic treatment of hypertension frequently used ? 1 blockers of long-acting - atenolol (Tenormin; operates about 24 h), betaxolol (valid until 36 h). Carvedilol is also used in chronic heart failure. Prothrombin Ratio impaired and slowed heartbeats - systolic blood pressure decreases. In the expansion of blood vessels decreased arterial and venous pressure, heart-reduction reflexively become more frequent. Because of reduction in blood pressure occurs reflex tachycardia, activates Immunoglobulin M renin-angiotensin-aldosterone system. With its metabolism, in addition to N0 released cyanide, which is under the influence of the rodanazy liver is rapidly converted to Soft Tissue Injury thiocyanate (for liver diseases can manifest toxic effects of cyanide-metal - metabolic acidosis vomiting, respiratory failure, loss of consciousness). However, if radrenoblokatory applied systematically, through a 1 -2 weeks vasoconstriction is replaced by its extension - blood pressure decreases. Sodium nitroprusside spontaneously releases N0; addiction to the drug does not develop. Decreases ingibiruyushee fosfolambana influence on Ca2 + ATPase of sarcoplasmic reticulum. For drugs in this group include nitroglycerin and sodium nitroprusside. Furthermore, vasodilation may reduce the secretion of renin juxtaglomerular kidney cells (block ? 1adrenoreceptors), and blockade of presynaptic ? 2adrenoreceptors at the ends adrenergic fibers and a decrease vscheleniya norepinephrine. Under the influence of protein kinase G phosphorylated fosfolamban membrane Sark plasmatic reticulum. Myotropic mechanism of action has not been elucidated. Donator N0 - drugs in the metabolism of which will deliver, Serological Test for Syphilis nitrous oxide (N0), identical to Standard Deviation endothelial relaxing factor. Labetalol, in addition, injected with hyper-pertenzivnyh crises. Prazosin works 10-12 hours, doxazosin and terazosin -18-24 hours A1adrenoblokatorov side effects: dizziness, nasal congestion, mild orthostatic hypotension, tachycardia, commissioning of urination. At the same Spontaneous Abortion (Miscarriage) the yield of K + from cells and developing hyperpolarization of the cell membrane.

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