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QUESTION 83 1 points Save Answer The nurse is caring for a client with traumatic injuries who is hypotensive. What pathophysiologic change could be the cause of the client's health problem? Activation of the renin-angiotensisn-aldosterone system Insufficient antidiuretic hormone Deficient natriuretic peptides Increased tissue oxygen demand Save All Answers Save and Submit Click Save and Submit to save and submit. Click Save All Answers to save all answers. AW 11:43 V17/20 D e Ô $ 0 $ 9

Answer 1

The correct answer is option 1.ie activation of renin angiotensin aldosterone mechanism..Following traumatic injury there is hemorrhage and ultimately result in hypovolemia and hypotension.In this RAAS mechanism the Bp will increase and result in increased blood volume

Hypotension or hypovolemia Renal hypoperfusion Activation of aortic/carotid baroreceptors Low afferent ole pressure Decreased NaCl delivery to macula densa Increased sympathetic tone Renin release From juxtaglomerular cells of nephrons - Angiotensin produced in the liver Converted by renin Angiotensin I Converted by angiotensin converting enzyme (ACE) on vascular endothelium Site of action of ACE inhibitors Angiotensin II - Binds angiotensin receptors Site of action of ARBS Increased blood pressure Increased blood volume Vasoconstriction Increased sympathetic NS activity Aldosterone release from adrenal cortex) Increased Na absorption in proximal tubule) Endothelial dysfunction Promthrombotic effects (increases PAI-1)