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50 year old male complains of weakness and exertional shortness of breath. He denies any chest pain. He golfs twice a week and runs two miles every other day but the runs have been cut short secondary to his presenting symptoms. Vtal signs: BP=130/70mmHg,HR=98, RR=18. Physical exam is significant for pallor and a soft systolic murmur. Chest is clear to auscultation and there is no evidence of lower extremities edema.(Hint:shortness of breath in the absence of heart and lung pathilogies-think hematology.)Which test would you order? why?
The patient returns four weeks later. Laboratory values are significant for a hemoglobin and hematocrit( H&H) of 10/32, reticular index of 2, low iron, and high total iron binding capacity (TIBC). What is the most appropriate next step in management?
What is the most likely cause for this patient's anemia?
Why would someone use a split ratio as opposed to making a cell count? What is the major drawback to performing a split ratio?
In this exercise you will be calculating the osmolarity of a carrot or a potato, which ever one you might have sitting around the house. You will need one potato or one carrot.
describe the 5 steps in respiration/metabolism of glucose, address glycolysis, trasition reaction, kreb's cycle, electron transport and chemiosmosis.
A homozygous claret (ca=ruby eye color), curled (cu=upcurved wings), fluted (fl-creased wings) fruit fly is crossed to a pure-breeding wild-type fly. The F1 females are testcrossed with the following results.
Cells can change the composistion of their membranes to adapt to different environmental situations. What component of the membrane coud be changed to help an organism tolerate cold?
In a Drosophila virilis salivary gland cell before endomitosis, how many copies of each gene are there in the cell? At the end ofendomitosis, how many copies of each gene are there in the cell?
A patient is improving with antineoplastic agents, but has become more and more quiet and listless. What may be the problem? What suggestions may be made?
Your family has gathered to celebrate. Identify the structures in the nervous system responsible per the questions on the worksheet.
Fungi play many important ecological roles. They are heterotrophic and break down organic matter extracellularity and then absorb the nutrients.
Suppose if equal amounts of Na2HPO4 and NaH2PO4 are mixed in water, compute the resulting pH. The pKas of phosphoric acid are 2.1, 7.2, 12.4.
Explain how black and white pattern on the male siamese cat arises. If the oceans warm a few degrees, what impacts can you see on the landmasses, biologic community, and human populations? Are these positive or negative changes? Why with reason.
How is modularity beneficial to animal specialization during the course of evolution? Illustrate your explanation with an example.
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