Our class had to come together in a collaborative effort to answer the questions from past exams, even with all of our books and notes at hand. We made a massive google document full of every colour imaginable, with highlighted answers and multi-coloured discussions and arguments about which one was correct. Lots of spots have something in red or caps, asking "Can someone explain this??" Here's the top of the page when you open it:
I would just like to say good work everyone on all the question answering I think we can all say these questions are worded terribly and information is very inconsistent but GOOD LUCK FOR TOMORROW :) This will not be a very pleasant experience ...i resent this test and the people that prepared it
Here are a few examples of our attempts to answer the questions in the study guide (SG):
18. C because it SHOULDN’T be designed to enhance traffic flow through clean areas? (agreed) (p70 of SG confirms this)
19. A apparently can someone explain this? :)Disinfectants are used to sanitize surfaces / Antiseptics are used to cleanse wounds / Autoclaves are used to sterilize instruments. Hope this helps20. B
21. C (Isn’t this B...? The image is the same as the one in the lec slides) Yep pretty sure its B
22. C
23. C
24. G/D (lettering is not ideal on this question!) not sure bout this either, thoughts peeps. I agree theres a table on page 1062 of fossum that says it is.FROM FOSSUM - Allogeneic cancellous bone grafts provide limited mechanical support and are osteoconductive, but not osteoinductive because the matrix is mineralized. Therefore, answer is NOT G/D. where is this? because according to the table cancellous allografts are osteoinductive..Thus is the answer E???????? I thought none of the grafts were good at osteogenesis. If the graft was rendered inert it would have no more protein therefore cannot be osteogenic unless a protein source was addedyeah i think its E (the last option...E2).. the questions is asking for which one is true..
But it gets worse.
j) An advancement flap in the shape of a U is created, in order to not compromise its vascularity, the ratio of the length to the width should not be greater than:i) 1to1. ??ii) 1.5 to 1.iii) 2to1. ??iv) 3to1.v) 4to1
ok so been trying to find this one... and found a few recent articles/studies saying that ratio isn’t even a factor …. “Therefore, the traditional concept of a width-to-length ratio does not dictate flap survival, rather perfusion pressure does.”anyways it carries on to say “ Classically, advancement flaps have a length-to-width ratio of 1:1 or 2:1” WHICH STILL DOESN’T HELP US!
The questions are ridiculously pedantic. Look at these. Seriously, the fuck?? WHY WOULD ANYONE KNOW THIS? Let alone in introductory surgery in third year, when you've barely even begun learning anything past anatomy, genetics, and microbiology.
When using Chlorhexidine solution (stock strength = 4%) to lavage a wound what is the maximum concentration that should be used?(a) 1 part in 10 of saline.(b) 1 part in 20 of saline. p.27 has lavage concentration should be .05 = 1/20)??(c) 1 part in 30 of saline(d) 1 part in 40 of saline. Fossum says 1:40(e) 1 part in 50 of saline. ← I thought it was 1ml to 80ml but....you want to get Chlorhexidine down to 0.05% soln thus need to dilute it down 20 timese.g. 10ml chlorhexidine diluted by 200ml saline = 0.05%10/200 = 0.05% actually idk (I agree with B since that’s what the SG says.. eg 1/20=0.05)
You have to remember you are starting with a 4% solution...... So, you can’t just do 1/20..... Besides 1/20 gives 5% not 0.05%
there was a something on the internet that had it as 1 part in 40 but I can’t find the link anymore..some textbook on google books...ughhh me gad!
2. The maximum level of bacterial contamination required for successful wound closure in surgical wounds is generally considered to be:a. 104 / g of tissueb. 105 / g of tissuec. 107 / g of tissued. 109 / g of tissue
Plus there's the questions like this one, about fistulas. We never talked about fistulas. Not once. I had no idea what a fistula was before I saw this question, let alone had any clue how to answer something about surgical management of one. Plus you'll notice this question goes from cow teats to foaling injuries. You may be beginning to see why vet school is so stressful.
18. Which of the following is a correct statement about a fistula?(a) When closing a teat fistula in a cow the most important layer to make leakproof is the mucosa.(b) When closing a teat fistula in a cow the most important layer to make leakproof is the skin.(c) When closing a teat fistula in a cow preserving the epithelial tract willaccelerate healing. ← maybe this one but i really have no idea(d) When repairing a foaling injury that has resulted in a rectovaginal fistula ina mare a complete closure of the vaginal mucosa is more important thanthe rectal mucosa. i know rectovaginal tears are not usually closed right away to allow for swelling to go down, but I think the vaginal mucosa is the most important thing to worry about (to reduce further infection from the rectum)...(e) In time most fistulas will close as wound contraction is completed.
Our whole document was 28 pages long. It was full of misery and stress and colour. Here's the best part, however:
Five minutes before the exam was about to start, as we were sitting at our computers ready to open the program, one of the high-up vet school coordinators appears. He only tends to appear to yell at us, so I immediately knew something was wrong.
It turns out that the surgeon had put the test online ahead of time over the weekend, because he was going to a concert or something. A few people in the class noticed it and accessed it. For some reason, the school decided to wait until that moment in time to let us know about the security breach and change the test. They had to throw out the multiple-choice test and throw something together for us. We would meet in a lecture room in half an hour, and would be taking a written test instead.
People cried.
