Biobrane and Transcyte
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Questions and Answers

Which of the following is true about the zone of stasis?

  • It is the zone where microthrombi form within platelets.
  • It is the zone where injury is potentially reversible. (correct)
  • It is characterized by vasodilation and increased blood flow.
  • It is the zone where cell death occurs.

    • What is the main function of antibodies directed to receptors on neutrophils in the zone of stasis?

  • To promote the adherence of neutrophils to vessel walls.
  • To prevent microvascular occlusion and leukocyte-mediated endothelial injury. (correct)
  • To decrease the total burn surface area.
  • To induce vasoconstriction and decrease blood flow.

    • What is the zone of hyperemia characterized by?

  • Vasodilation and increased blood flow. (correct)
  • Vasoconstriction and decreased blood flow.
  • Endothelial swelling and neutrophil adherence.
  • Microthrombi formation within platelets.

    • What is the zone of adherence in reference to?

    <p>Anatomic regions within the body where skin and subcutaneous tissue are connected to the underlying fascia.</p> Signup and view all the answers

    What is the main objective of inhibiting CD18-mediated leukocyte adherence in the zone of stasis?

    <p>To prevent the infiltration of leukocytes.</p> Signup and view all the answers

    What is the potential consequence of excessive suctioning in the zone of adherence?

    <p>Contour deformities.</p> Signup and view all the answers

    Which of the following is NOT a characteristic of the zone of stasis?

    <p>Vasodilation and increased blood flow.</p> Signup and view all the answers

    What is the main objective of experiments involving the zone of stasis?

    <p>To decrease the total burn surface area.</p> Signup and view all the answers

    What is the consequence of injury in the zone of stasis?

    <p>Cell death.</p> Signup and view all the answers

    What is the main function of vasoactive mediators in the zone of hyperemia?

    <p>To cause vasodilation and increased blood flow.</p> Signup and view all the answers

    Which of the following is true about second-degree ptosis?

    <p>The nipple is located beneath the inframammary fold, but above the lowest level of the breast</p> Signup and view all the answers

    In patients with pseudoptosis, the nipple is located

    <p>Above the inframammary fold</p> Signup and view all the answers

    Which of the following is NOT a factor that determines the need for breast contouring following removal of breast implants?

    <p>Size of the areola</p> Signup and view all the answers

    Which of the following is NOT a characteristic of Poland syndrome?

    <p>Breast hypertrophy</p> Signup and view all the answers

    Which of the following factors will best determine the most appropriate next step in the management of a 48-year-old woman who recently underwent bilateral reduction mammaplasty and histologic evaluation of resected tissue shows findings consistent with invasive ductal carcinoma?

    <p>Initial tumor margins</p> Signup and view all the answers

    A 45-year-old woman is scheduled to undergo mastectomy of the right breast followed by reconstruction using a free TRAM flap. She has a 15 pack/year history of cigarette smoking. This patient is at increased risk for development of each of the following postoperative complications EXCEPT

    <p>Fat necrosis</p> Signup and view all the answers

    Which of the following is NOT a characteristic of the zone of hyperemia?

    <p>Decreased oxygenation</p> Signup and view all the answers

    Which of the following is NOT a characteristic of Biobrane?

    <p>It is a bioengineered dermal substitute</p> Signup and view all the answers

    Which of the following is a characteristic of Transcyte?

    <p>It is a synthetic epidermis</p> Signup and view all the answers

    Which of the following is a characteristic of Integra?

    <p>It consists of a nylon fabric containing chemically bound collagen</p> Signup and view all the answers

    Which of the following is the most appropriate management for a 16-year-old girl with rapid, asymmetric enlargement of the left breast, an 18-cm mass, ptosis, stretching of the nipple-areola complex, prominent and dilated veins, and skin ulceration superolateral to the nipple?

    <p>Enucleation</p> Signup and view all the answers

    Which of the following nerves primarily provides sensation to the nipple-areola complex?

    <p>Lateral cutaneous nerve from T4</p> Signup and view all the answers

    Which of the following is NOT a significant risk factor for perioperative complications in patients undergoing free TRAM flap breast reconstruction?

    <p>Age over 50</p> Signup and view all the answers

    Which of the following is a characteristic of the zone of hyperemia?

    <p>Vasodilation and increased blood flow</p> Signup and view all the answers

    What is the main objective of experiments involving the zone of stasis?

    <p>To limit burn depth</p> Signup and view all the answers

    What is the consequence of injury in the zone of stasis?

    <p>Cell death</p> Signup and view all the answers

    What is the potential consequence of excessive suctioning in the zone of adherence?

    <p>Contour deformities</p> Signup and view all the answers

    What is the zone of adherence in reference to?

    <p>Skin and subcutaneous tissue connected to underlying fascia</p> Signup and view all the answers

    What is the main function of antibodies directed to receptors on neutrophils in the zone of stasis?

    <p>To prevent microvascular occlusion</p> Signup and view all the answers

    Which of the following is true about the zone of stasis?

    <p>Formation of microthrombi within platelets occurs</p> Signup and view all the answers

    Which of the following is the most appropriate management for a 40-year-old woman with cyanosis of the right nipple one hour after undergoing bilateral breast reduction with removal of 1500 g of tissue on each side?

    <p>Release of the sutures</p> Signup and view all the answers

    Which of the following agents is NOT linked to gynecomastia?

    <p>Zolpidem (Ambien)</p> Signup and view all the answers

    Which of the following dressings should be applied to second-degree burns involving 10% total body surface area (TBSA) in order to provide antimicrobial activity?

    <p>Silver-coated wound dressing (Acticoat)</p> Signup and view all the answers

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