SURGERY 2ND BMEX EXAM Flashcards
Which of the following types of surgical wounds would not need a dose of antibiotic before commencing surgery?
A. Class 1D
B. Class 1
C. Class II
D. Class III
B. Class 1
Which of the following types of surgical wound should be left partially opened to heal by secondary intention?
A. Incisional stab wound consequent to an elective surgery
B. Incisional wound consequent to an emergency abdominal exploratory surgery for a shotgun blast
injury to the abdomen with multiple small and large bowel perforations
C. Incisional wound of an appendectomy for a non-ruptured appendicitis
D. Incisional wound consequent to an emergency abdominal exploratory surgery for a penetrating abdominal stab wound with a non-bleeding liver injury
B. Incisional wound consequent to an emergency abdominal exploratory surgery for a shotgun blast injury to the abdomen with multiple small and large bowel perforations
Regarding surgical wounds that result from a clean-contaminated surgical procedure, which of the following significantly decreases the risk of surgical site infection?
A. Hand antisepsis by the operative team
B. Giving preoperative antibiotic prophylaxis
C. Preoperative shaving of operative site with the use of hair clipper
D. Wearing of surgical caps, masks, and gloves
B. Giving preoperative antibiotic prophylaxis
During the first 48-96 hours post-surgery, which of the following predominate the wound site?
A. Platelets
B. Macrophages
C. Monocytes
D. Polymorphonuclear leukocytes
B. Macrophages
What is the expected time frame for the proliferative phase of healing to occur after injury?
A. 1-2 days
B. 4-7 days
C. 7-14 days
D. 2-3 days
B. 4-7 days
Which of the following is true about antimicrobial agents in controlling surgical infection?
A. Administration of antibiotics can delay the need for surgical intervention
B. These are only of secondary importance to effective surgery with regard to treatment overall outcome
C. Aggressive type of surgical infections can be treated only by the administration of antibiotics
D. They are entirely of no use in microbial control of surgical infection
B. These are only of secondary importance to effective surgery with regard to treatment overall outcome
Which of the following statements is true of antimicrobial prophylaxis?
A. Antibiotic administration is started during the intraoperative period only when significant spillage of bowel contents has occurred
B. Antibiotics should only be administered during the postoperative period
C. Antibiotic administration is limited to the period immediately prior to incision
D. Involves continuing the antibiotic administration for 3-5 days post-operatively
C. Antibiotic administration is limited to the period immediately prior to incision
Which of the following predominantly comprise the colonic microflora?
A. Bacteroides fragilis, Fusobacterium, Peptostreptococcus, Clostridium sp.
B. Staphylococcus sp., Streptococcus species, Corynebacterium, Clostridium sp.
C. Escherichia coli, Klebsiella pneumonia, Pseudomonas aeruginosa
D. Salmonella sp., Shigella, Enterococcus faecalis, Enterococcus faecium
A. Bacteroides fragilis, Fusobacterium, Peptostreptococcus, Clostridium sp.
Superficial skin and skin appendages infection such as cellulitis, folliculitis, erysipelas, and furuncles are commonly caused by what microorganisms?
A. Escherichia coli, Klebsiella pneumonia, Pseudomonas aeruginosa
B. Bacteroides fragilis, Peptostreptococcus, Fusobacterium
C. Enterococcus faecalis, Enterococcus faecium, Enterobacter
D. Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus sp.
D. Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus sp.
Which of the following statements is true regarding colonization resistance?
A. Refers to the ability of phagocytes to control the invading microorganisms at the site of tissue invasion
B. Ability of the epithelial and mucosal gut barrier to prevent microbial invasion
C. Refers to the action of resident microbial commensals to prevent the attachment, invasion, and proliferation of non-commensal pathogenic microbes
D. It is the action of the blood-borne components of the adaptive immune response to prevent the systemic dissemination of the pathogens
C. Refers to the action of resident microbial commensals to prevent the attachment, invasion, and proliferation of non-commensal pathogenic microbes
Burn patients are at risk for developing sepsis secondary to
A. suppurative thrombophlebitis
B. pneumonia
C. catheter related infections
D. All are correct
D. All are correct
The phenomenon in healing of partial thickness burns is attributed to the presence of
A. myocytes
B. epidermal appendages such as sweat glands, sebaceous glands, hair follicles
C. cells of the stratum corneum
D. nerve endings
B. epidermal appendages such as sweat glands, sebaceous glands, hair follicles
Where will you find the dermis to be thickest?
A. Eyelids
B. Palms
C. Back
D. Soles
C. Back
Alkali solution produce what type of tissue injury?
A. Liquefaction necrosis
B. Desiccation
C. Anoxic necrosis
D. Coagulation necrosis
A. Liquefaction necrosis
A live wire accidentally touched a metal rail which an electrician was holding. He sustained a 5cm x 4cm full thickness burn entry wound on the right palm. At the ER he was given IV fluids, tetanus prophylaxis and antibiotics. One hour later patient’s urine output was noted to be the color of black tea. Patient’s condition is called
A. alkaline urine
B. pyuria
C. hematuria
D. myoglobulinuria
D. myoglobulinuria
Melanoma most commonly manifests as a cutaneous disease that has asymmetric irregular borders, color variation, elevation, and a diameter greater than
A. 1 cm
B. 6mm
C. 2 mm
D. 2 cm
B. 6mm
This cutaneous cyst forms on the scalp of females and lack a granular layer
A. Dermoid cyst
B. Epidermal cyst
C. Trichilemmal cyst
D. Sebaceous cyst
C. Trichilemmal cyst
Seborrheic keratosis will likely transform into
A. Kaposi sarcoma
B. melanoma
C. squamous cell ca
D. basal cell ca
C. squamous cell ca
What is the antibiotic of choice for Fournier’s gangrene (+) MRSA?
A. Clindamycin
B. Vancomycin
C. Ciprofloxacin
D. Linezolid
B. Vancomycin
What is the pathophysiologic mechanism of hidradenitis suppurativa?
A. Hyperandrogenism
B. Follicular rupture
C. Follicular occlusion
D. An apocrine disorder
C. Follicular occlusion
For a clean wound that is approximated (sutured) primarily you would expect the process of epithelialization to be completed within what time frame?
A. Within 7 days
B. Within 24 hours
C. Within 3 days
D. Within 48 hours
D. Within 48 hours
The formation of a mature, avascular, acellular wound scar with maximal tensile strength is achieved within
A. 6-12 months post-injury
B. 30 days post-injury
C. 4-6 months post-injury
D. 2 months post-injury
A. 6-12 months post-injury
Wound contraction due to the action of myofibroblasts starts and increases after what time period post-injury?
A. After 4 weeks
B. 4-6 months
C. 6-21 days
D. 6-15 days
C. 6-21 days
Which of the following statements is true about keloids?
A. Associated with high rate of recurrence after surgical excision
B. They are precancerous lesions
C. They do not extend beyond the margins of the wound
D. Usually develops within 4 weeks after injury
A. Associated with high rate of recurrence after surgical excision