Achieving Hemostasis in Delicate Areas Can Be a Challenge for the Neurosurgeon.In

question 11

Multiple Choice

Achieving hemostasis in delicate areas can be a challenge for the neurosurgeon.In addition to using meticulous technique to prevent bleeding,topical agents are routinely used as an adjunct to hemostasis.Some hemostatic products form a composite clot that seals a bleeding site by using a thrombin component that converts fibrinogen in the patient's blood to fibrin.Select the diad (2) of hemostatic products that provide hemostasis by topical application,essentially acting as a patch rather than a clotting factor.

• A) Oxidized cellulose (Surgicel) and topical thrombin
• B) Bone wax and topical thrombin
• C) Bone wax and oxidized cellulose (Surgicel)
• D) Gelatin matrix (FloSeal) and collagen hemostat (Avitene)

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Definitions:

Linkage Group

A set of genes located close together on the same chromosome that tend to be inherited together.

Chromosome

A chromosome is a long, continuous thread of DNA that contains numerous genes and regulatory elements, housed within the nucleus of every cell.

Testcross

Method of determining the genotype of an individual with a dominant phenotype: a cross between the individual and another individual known to be homozygous recessive.

Homozygous Dominant

An individual having two identical alleles for a trait on both homologous chromosomes, with both alleles being dominant.