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Alicia18 specializes in Geriatrics.

Alicia18's Latest Activity

  1. I truly must not have understood this concept when I studied it. I kick myself now for selling my book. Would you say that, following the definitions given below, that extrinsic hemostasis is the same as primary hemostasis and that intrinsic hemostasis is the same as secondary hemostasis. This question can be for anyone who wishes to answer. i'm having very little luck finding good websites to answer my questions... Primary hemostasis is characterized by vascular contraction, platelet adhesion and formation of a soft aggregate plug. It begins immediately after endothelial disruption. Injury causes temporary local contraction of vascular smooth muscle. Vasoconstriction slows blood flow, enhancing platelet adhesion and activation. Adhesion occurs when circulating von Willebrand factor(vWf) attaches to the subendothelium. Next, glycoproteins on the platelet surface adhere to the "sticky" von Willebrand factor(vWf). Platelets collect across the injured surface. These platelets are then "activated" by contact with collagen. Collagen-activated platelets form pseudopods which stretch out to cover the injured surface and bridge exposed fibers. The collagen-activated platelet membranes expose receptors which bind circulating fibrinogen to their surfaces. Fibrinogen has many platelet binding sites. An aggregation of platelets and fibrinogen build up to form a soft plug. Platelet aggregation occurs about 20 seconds after injury. Primary hemostasis is short lived. The immediate post injury vascular constriction abates quickly. If flow is allowed to increase, the soft plug could be sheared from the injured surface, possibly creating emboli. Secondary hemostasis is responsible for stabilizing the soft clot and maintaining vasoconstriction. Vasoconstriction is maintained by platelet secretion of serotonin, prostaglandin and thromboxane. The soft plug is solidified through a complex interaction between platelet membrane, enzymes, and coagulation factors. Coagulation factors are produced by the liver and circulate in an inactive form until the coagulation cascade is initiated. The cascade occurs in steps. The completion of each step activates another coagulation factor in a chain reaction which leads to the conversion of fibrinogen to fibrin.
  2. Hemostasis is involved in creating a blood clot. A good link with a mini-video is http://www.mhhe.com/biosci/esp/2002_general/Esp/folder_structure/tr/m1/s7/trm1s7_3.htm I believe that the difference between extrinsic and intrinsic mechanisims is that the clotting process is started by COLLAGEN seeping into the blood vessel from the OUTSIDE for EXTRINSIC, and CHEMICAL FACTORS from INSIDE the blood vessel triggering the clotting process for INTRINSIC. I'm not completely certain on this part, though, and would appreciate if someone could perhaps make more clear exactly what happens during these two hemostatic processes. Okay, I've started the ball rolling. Someone else's turn. Please?
  3. For whoever mentioned it on the summer break thread, I that find hemostasis, intrinsic and extrinsic, has slipped my mind. Will research on my own, but might cool to have discussion or something.
  4. As posted by someone in the thread about all our summer plans, some of us might want to use this break time to get to truly understand stuff that we learned for the tests, but are now hazy for us. I was thinking that there would be no better place to find study partners than in a Nursing Student Forum. So, um... I guess we could post our questions and discuss...
  5. Alicia18

    What are you doing this summer?

    Gahhh. I need to review that info, obviously. I recognize all the terms you mention, but I only really feel like I could perhaps b.s. an explanation of electron transport and glycolysis. I better take a look at my old A&P tests and really UNDERSTAND the material, I guess. Gahhh. Help?! lol
  6. Alicia18

    You Know You're a Nurse When...

    teehee.... me!!! i also tend to jump when i hear any callbell-like sound anywhere. i'm like, oh, darn, who's ringing for me? i'm off work, for cry'n out loud! i also hear callbells whee there are none and find myself assessing my own urine and stool. will give 3rd degree when someone says they aren't feeling well. hey, don't know overly much yet (only just finished my prereqs for my rn), but i still feel i have to know! lol
  7. Alicia18

    You Know You're a Nurse When...

    YES!!! A MILLION TIMES, YES!!! I've had labpartners say that looking at the cat makes them hungry. They usually instantly disgusted at themselves. lol
  8. Alicia18

    You Know You're a Nurse When...

    "1. you can't never remember the last time you pee'd. 3. You don't answer the phone until after you've ascertained that it is not work calling to ask you to come it after just pulling a double. 4. If said call is picked up, you often cave in and work." Only am a CNA and a nursing student right now, but I can SOOOO relate to these, esp. 3 and 4, lol!
  9. Alicia18

    You Know You're a Nurse When...

    I definitely wear at least scrub bottoms to bed! lol Those things are COMFORTABLE, darn it!
  10. Alicia18

    How often do you take a break?

    Only take those naturally-made breaks -- the quiet periods of the day (or night) when all my nursing home residents are snoozing. I don't clock out for them, though, b/c the minute something happens, whether I'm eating or not, I'm up. I don't plan my breaks -- they just happen! lol
  11. Alicia18

    What field of Nursing will you work in??? & best/worst place to work?

    When I finish school, I'm hoping to do Hospice or SOMETHING with the Dying if not Hospic in particular. If I don't do that, I can see myself staying in Geriatrics like I am now. I know I don't freak out when I'm with people who are dying, and I'm currently in Geriatrics, so that is what has given me some direction in a choice. Who knows, though? Clinicals start for me in the Spring of 2007. Maybe by the time I get out of school, I'll find that some other area fits me better...
  12. Alicia18

    Day Shift vs. Night Shift

    I prefer dayshift b/c I'm much more a morning person. I DO miss the busyness of nightshift, though. Heh, extra pay for nightshift? I wish.
  13. I'm a CNA, like Karmyk, and during breaks from school, I work nighshift, dayshift, whenever-they-want-me shift at a retirement home/nursing home. I've found that Reeboks have been very nice to my feet. I'm still using the pair that I got when I started working about 2 years ago. They are starting to show some wear now, but I love them so much I really don't want to give them up until they COMPLETELY die!
  14. Alicia18

    1/4 Nurse!

    YAY!!! (party) 1/4 a nurse here!
  15. Alicia18

    To roomate or not to roomate????

    I get along fine with my 1st roommate, and look forward to sharing a room with my second one. The key thing is that I'm never in the room unless I'm asleep. I always study elsewhere. Also, both roommates have sleeping patterns very similar to mine, so I don't have to worry too much about waking them up when I come to bed @ 11pm and wake up @ 5am. I think it really depends on your studying and sleeping habits.
  16. I'm doing a bachelors of nursing at Franciscan University, a small Catholic college in Steubenville, Ohio! Will be a second-year student in the Fall, and hope to have my prereq grades high enough so I'll be accepted into the actual nursing program! We've got a LOVELY campus, and many, many little places for a nursing student to hide with her books!