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A 75-year-old male presents to the emergency department with a several-hour history of back pain in the interscapular region. His medical history includes a previous myocardial infarction (MI) several years ago, a history of cigarette smoking until the time of the MI, and hypertension that is well controlled with hydrochlorothiazide and lisinopril (Prinivil, Zestril). The patient appears anxious, but all pulses are intact. His blood pressure is 170/110 mm Hg and his pulse rate is 110 beats/min. An EKG shows evidence of an old inferior wall MI but no acute changes. A chest radiograph shows a widened mediastinum and a normal aortic arch, and CT of the chest shows a dissecting aneurysm of the descending aorta that is distal to the proximal abdominal aorta but does not involve the renal arteries. Which one of the following would be the most appropriate next step in the management of this patient?
In a nondividing cell such as a liver cell, why must the flow of membrane between compartments be balanced, so that the retrieval pathways match the outward flow? Would you expect the same balanced flow in a gut epithelial cell, which is actively ..
a certain type of crab tends to be larger in a local bay than in the open water outside the bay. What hypotheses might account for this difference? HOW would you go about testing these hypotheses?
A diagnostic of phlebitis was made. What is Phlebitis and what more serious condition may result if proper healing doesn't occur? What is the treatment for this patient and what will be the likely outcome from this disease.
A new drug targets renal function through changing ion transport from the filtrate to the interstitial fluid. This particular medicine blocks active transport of sodium in the nephrons.
In the process of building a genomic library, what is one potential problem a researcher might run into and how might this be avoided?
Drugs that block the function of oncogenic proteins hold great promise in the fight against cancer. Should cancer researches also be attempting to design drugs that will interfere with the products of tumor suppressor genes like p53? Why or why not?
q1. three classes the polychaeta oligochaeta and hirudinea will be examined. class polychaeta members are marine.
when male mallards are crossed-fostered with other ducks and zebra finches are cross-fostered with other finches, the resulting males court females of the foster species and not their own species; however, selection by female mallards and zebra fi..
The lining of the stomach constantly secrets hydrochloric acid,making the stomach contents acidic (to aid in digestion of food ).excessive stomach acid causes discomfort. why do you consume tumsor rolaids ( which contain NaHCO3) to combat the discomf..
At the present we know that over 99 percent of the time, glucose occurs in the closed-ring form. What likely difference between these forms would give chemists a clue that the open-chain form was not present.
You receive a set of pregnant brown mice. You know that the mothers are doubly heterozygous (heterozygous at both the coat color and albinism loci) and that the fathers were albino.
In US work places the laboratory safety issue has been over concerned and overemphasized
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