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Orthopedic
Prophylactic antistaphylococcal drugs administered preoperatively can decrease the incidence of both early and late infection following joint replacement. They also decrease the rate of infection in compound or open fractures and when hip and other fractures are treated with internal fixation by nails, plates, screws or wires. If a proximal tourniquet is used for the procedure, the antibiotic infusion must be completed prior to its inflation. One large randomized trial found a single dose of a cephalosporin more effective than placebo in preventing wound infection after surgical repair of closed fractures. A prospective randomized study in patients undergoing diagnostic and operative arthroscopic surgery concluded that antibiotic prophylaxis is not indicated.
. Explain why the traditional classification of unicellular eukaryotes as ‘protozoa’ or ‘protists’ is invalid in terms of modern systematics and evolutionary theory. Why are trad
UNDERS T ANDIN G LIF E - Presence of protoplasm is the important feature of life which acts the site of metabolism. Maintenance of life by protoplasm requires conti
Pathophysiolog y Normally the platelets are formed from megakaryocytes (stem cells) in the. bone marrow. These cells mature, fragment and are released in the blood strea
Blood from the fetus circulates through the placenta. a) What substances pass (i) from the maternal to the fetal blood, (ii) from the fetal to the maternal blood?
Hydra – Metazoa The animals of phyla Cnidaria and Ctenophora are made up of only two germ layers: ectoderm which forms the outer covering of the animal and endoderm which is t
Pluripotent SCs : Characterizing more restricted abilities for differentiation.their sources are some celles blastocyst (5-14 days) embroys, so can from over 200 cells types i.e
AMITOSIS This is direct cell division in which the genetic material is not duplicated and hence its distribution to the daughter cells is not precisely half and half,
Which of the following best explains the reason why DNA ligase is needed to complete the replication of internal chromosomal segments? A. DNA ligase is able to delete the last
how does respiration takes place in animals ?
Fischer 's template or lock and key model According to this model, the catalytic site of the enzyme has a proper conformation compatible to a specific substrate even in the a
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