Self-made question, watch out for mistakes (they are possible)
A 40-old car-sales manager was working hard the previous year and now presents with the following symptoms: he has poor coordination of hands, speech and eye movements. You notice poor overall...
Carboxyhemoglobin is a form of Hb that is bound to CO instead of o2, right?
Then why does it cause a left shift in the dissociation curve?!
In other words, could someone plz explain the whole carboxyhemoglobin thing :S
Thnx in advance!
I had a question regarding renal blood flow (RBF). In BRS physiology it mentions that there is autoregulation of RBF, accomplished through changing renal vascular resistance. It says that RBF can remain constant over arterial pressures of 80 to 200 mm HG, and it is done through...
let's say you have fibroids, and therefore bleeding, what will be the changes to O2 content, O2 saturation and arterial PO2?
These kinds of questions have troubled me for months so please explain your answer. Some things change and some stay normal, but I've never understood why.
I have read this short explanation in medEssentials in online Kaplan Qbank
NB: page 235 in 2nd Edition
page 249 in 3rd Edition.
-If low capillary velocity allows adequate time for diffusion, exchange is perfusion limited.
-If velocity is high, metabolic exchange may become diffusion...
i always feel embarrassing upon graph analysis questions in physiology, it always take me like 2mins to figure out what being asked and direct myself to the answer... would you guys give me any recommendations/website/previous threads to strengthen this field?
thanks a lot
I'm preparing for USMLE step 1 early in the subject that I'm not doing quite well. I'm now using BRS physiology for the review and it seems like I need more comprehensive physiology problems to polish my knowledge, so any recommended books? :)
Why do the A Bands remain the same in muscle contraction?
If the distance between the Z lines is decreasing, shouldn't the amount of overlap between actin and myosin increase?
I'm completely lost. Any help would be appreciated.
How come a FVC 85% of predicted and a FEV1/FVC ratios = 86% can be consider a normal pulmonary function test???
This is part of UW explanation.... Q ID 824... it is mentioned that this patient with this values has normal pulmonary function tests? am I missing something here???
I believe that...