naobro’s “Medical Tidbits” blog #8; 05/31/2013
“What Those Waves on Heart Monitors Mean” The top image created from a video on youtube.com/watch?v=bnUM0aaPMyk, the next image from de.academic.ru, the third from en.wikipedia.org/wiki/Purkinje_fibers & the bottom image created from one on favoriteplus.com. According to the original video, the top animated GIF image above is that of a rabbit heart beating 3 hrs after dissection.
We have a 4 chambered heart; 2 atria on top of 2 ventricles, ventricles are larger than atria. Our heart is a peculiar organ; there is a group of cells located near the top, in the right atrium (#1 in the 2nd image from the top). These cells are called the “pacemaker” tissue because they generate electrical impulses which make our heart beat. The impulses travel from #1 to #2 (in the same image), then further down throughout the ventricles.
What do the waves shown in blue (in the 3rd image from the top) mean? The blue waves show the voltages registered as the electrical impulses travel throughout the heart & make our heart beat. The bottom image displays a little more details. In the bottom image, there are 4 waves, “P”, “QRS complex”, “T” & “U”. What are they?
P wave: This wave shows the electrical impulses traveling throughout our atria, the top 2 chambers of the heart. The impulses make the atria contract to squeeze the blood into our ventricles, the bottom 2 chambers of the heart.
QRS complex: This complex shows the electrical impulses traveling throughout our ventricles. The impulses make the ventricles contract to squeeze the blood out of the heart into our big arteries.
T wave: This wave shows our ventricles relaxing after the contraction.
U wave: This wave is usually too small to be observed in a healthy adult. Actually if the U wave is too prominent, we think something could be wrong.
So work has been going especially well this week. I don’t know whether its because they placed me on a floor with all new and younger nurses so I’ve been getting along with everyone very well, or because I’ve been very busy.
But yes, I was placed on a new floor (They change me depending on where I am needed) All the nurses on that floor are either new grads or graduated last year. So they’re all pretty close to my age. I enjoy talking with them about school, and they’ve been giving me little tips about what NOT to do after graduation (This one new nurse explained that her patient was on a tele and something went wrong on it so she went to go check, but when she went in, her patient appeared unconscious so she called a rapid response and it wasn’t until after calling the code did she realize that the patient was just sleeping and had pulled a cord loose lol)
I’ve also been pretty busy on the floor. I had 3 patients with C Diff and 4 MRSA patients. So I spent all day gowning up and down and scrubbing my hands. It was enjoyable though. I got to work with a lot of different patients and talk to them about how they are doing.
OH! There was also this very cute guy on the floor who was a year older than me haha. He was sweet but I know hospital procedure :/ Too bad haha.
Hope everyone is having an enjoyable summer so far!
Oh and then I found these and I laughed. So enjoy :pExcept I kind of disagree with the blue one because I would become a doctor if I wasn’t so lazy :p
YOU KNOW YOU’RE A NURSING STUDENT WHEN:
c/o 2015 ;)
Class of 2014 ;)
We’re almost there! 1 school year left!
Totally one of those days.
Hahahaha just thought this was adorable!
So I’m finally done for summer! Finals killed and I pretty much lived in the library for 2 weeks. To make it better my laptop died in me so I’ve been trying to keep up on my tumblr from my phone (which is hard).
Anyway, my med surg II final was 25% of my grade and covered 15 chapters. It was difficult to say the least. I spent weeks studying for it and reading my book. If any of you guys have the Iggy book or have seen the Iggy book, you know what a pain it is to read! But after this entire year, I feel like I’ve read a good majority of the book and its a solid 2000 pages haha. I ended up getting an 80 on my final with an overall grade in the class of an 85. I’m happy with my grade, its a B!
My other nursing class I somehow pulled a 90 on the final with an A- in the class overall.
Math was my weak point this semester. In my school were required to take an upper level stats class for our program, however….I suck at math. I managed to get a B- in the class with hours of studying. I’m happy to be done.
So now I’m relaxing for the summer until my pharm class starts up. Wish me luck in it and ill be posting my journey through pharm for you guys.