CSFA Intraoperative Procedures and Techniques Questions and Answers

Question 1

During a laparoscopic procedure, the CSFA is controlling the camera. The surgeon repeatedly complains of a poor, unstable image and difficulty with depth perception. Which of the following is the MOST critical skill for the CSFA to improve to resolve this issue?

Accepted Answer

Maintaining a stable camera hand and anticipating the surgeon's movements.

Answer

A steady image is crucial for surgeon concentration and performance. The camera operator acts as the surgeon's eyes, and an unstable, shaky image can cause disorientation and frustration. Anticipating the surgeon's next move allows the CSFA to provide the optimal view without constant verbal commands. While lens cleaning, light source intensity, and scope choice are important, a stable hand and proactive navigation are the fundamental skills to address the surgeon's specific complaints of instability and poor depth perception.

Question 2

A CSFA is assisting in the closure of a patient's fascia after a midline laparotomy. The surgeon requests a suture that is absorbable, has high tensile strength, and is a monofilament to reduce the risk of infection. Which of the following sutures would be the most appropriate choice?

Accepted Answer

Polydioxanone (PDS)

Answer

Polydioxanone (PDS) is a synthetic, absorbable, monofilament suture that retains high tensile strength for an extended period (several weeks to months), making it ideal for slow-healing tissues like fascia. Silk is a non-absorbable, multifilament suture. Polypropylene is a non-absorbable monofilament. Chromic gut is an absorbable, natural suture, but it has lower tensile strength and a shorter absorption profile than PDS, and as a natural material, it can elicit more tissue reaction.

Question 3

When assisting with patient positioning for a procedure in the lateral decubitus position, the CSFA must be particularly vigilant to prevent injury to which of the following nerve structures?

Accepted Answer

The brachial plexus by using an axillary roll and limiting arm abduction.

Answer

In the lateral position, the dependent shoulder and arm are at risk. An axillary roll is placed just caudal to the axilla (under the chest wall) to prevent compression of the axillary artery and the brachial plexus. Additionally, the non-dependent arm should not be abducted more than 90 degrees to avoid stretching the brachial plexus. The other nerve injuries listed are more commonly associated with different surgical positions, such as lithotomy or supine.

Question 4

A surgeon is using a monopolar electrosurgical unit (ESU) for dissection. The CSFA observes that the surgeon is frequently activating the ESU pencil while the tip is not in direct contact with the tissue. This technique increases the risk of which of the following intraoperative hazards?

Accepted Answer

Capacitive coupling

Answer

Capacitive coupling is the transfer of electrical current from the active electrode through intact insulation to adjacent conductive materials without direct contact. This can occur when the ESU is activated near other metal instruments (like a laparoscope or metal suction tip), potentially causing unintended thermal burns to non-target tissue. Activating the electrode in open space, especially in laparoscopic surgery, significantly increases this risk. Direct coupling involves direct contact, and desiccation occurs when the electrode is in direct contact with tissue.

Question 5

During a splenectomy, the surgeon encounters diffuse, low-pressure oozing from the splenic bed after the organ has been removed. Traditional methods like suture ligation and electrocautery are not practical for this large, raw surface. Which of the following would be an appropriate adjunctive hemostatic technique for the CSFA to prepare?

Accepted Answer

Preparing a topical hemostatic agent, such as oxidized regenerated cellulose.

Answer

Topical hemostatic agents are designed to assist in hemostasis when conventional methods are ineffective or impractical, such as with bleeding from raw surfaces of parenchymal organs like the spleen or liver. Oxidized regenerated cellulose (e.g., Surgicel) is an absorbable agent that provides a matrix for platelet adhesion and clot formation. Bone wax is for bone bleeding, aortic clamping is a major maneuver for massive hemorrhage, and sterile water would cause hemolysis and is not a hemostatic agent.

CSFA - Certified Surgical First Assistant Practice Test

CSFA - Certified Surgical First Assistant Practice Test

CSFA Intraoperative Procedures and Techniques Questions and Answers