Postoperative Patient Management Flashcards

A patient in the Post-Anesthesia Care Unit (PACU), 30 minutes after a major abdominal surgery under general anesthesia, develops severe muscle rigidity, tachycardia, hyperthermia (104°F / 40°C), and a rapidly increasing end-tidal CO2. What is the most likely diagnosis that requires immediate intervention?

Answer: Malignant Hyperthermia (MH)

This specific combination of symptoms—hyperthermia, severe muscle rigidity, tachycardia, and hypercarbia—occurring shortly after administration of triggering general anesthetic agents is the classic presentation of a Malignant Hyperthermia crisis. [8, 12] Immediate treatment with dantrolene is critical to prevent life-threatening complications. [3, 17] While other conditions can cause hyperthermia, the rapid onset of muscle rigidity is a key differentiator pointing to MH. [12]

Which of the following terms describes the complete separation of all layers of a surgical wound with the protrusion of internal organs?

Answer: Evisceration

Evisceration is a surgical emergency defined as the separation of all fascial layers of a wound accompanied by the protrusion of intra-abdominal organs. [2, 6, 9] Dehiscence refers to the separation of wound layers without organ protrusion. [9, 20] A hematoma is a collection of blood, and a fistula is an abnormal connection between two body parts.

A CSFA is rounding on a postoperative patient with a Jackson-Pratt (JP) drain. The nurse notes that the drain, which had been producing 40 mL of fluid per shift, has produced less than 5 mL in the last 4 hours, and the patient reports increased pain and swelling at the surgical site. What is the most appropriate initial action?

Answer: Inspect the drain tubing for kinks or clots.

A sudden decrease in drain output, especially when accompanied by signs of a developing fluid collection (pain and swelling), most commonly indicates a mechanical obstruction. The first and simplest troubleshooting step is to inspect the full length of the tubing for external kinks or internal clots that may need to be 'milked' or 'stripped' to restore patency. [26, 28, 30] Removing the drain or simply medicating for pain without addressing the cause would be inappropriate and could lead to a significant seroma or hematoma.

What is the most common pulmonary complication experienced by patients within the first 48 hours following major abdominal or thoracic surgery?

Answer: Atelectasis

Atelectasis, the collapse of alveoli, is the most frequent postoperative pulmonary complication, especially within the first 48 hours. [7, 16, 18] It is primarily caused by shallow breathing due to pain, residual effects of anesthesia, and patient immobility. It is the primary reason for encouraging incentive spirometry, deep breathing exercises, and early ambulation. While atelectasis can lead to pneumonia, it is the initial and more common event. [16]

A 68-year-old patient is on postoperative day 1 after a total hip arthroplasty. The patient is receiving prophylactic anticoagulants. In addition to medication, which of the following interventions is most crucial for the CSFA to encourage to help prevent deep vein thrombosis (DVT)?

Answer: Early and frequent ambulation as tolerated.

Early ambulation is a cornerstone of DVT prevention following major orthopedic surgery. [4] The contraction of calf muscles during walking actively pumps venous blood, preventing the stasis that contributes to clot formation (one part of Virchow's triad). While pharmacological prophylaxis is essential, early mobilization is a critical mechanical method of prevention. [4, 13] Strict bed rest significantly increases the risk of DVT.

A patient on postoperative day 3 following a colectomy has a distended abdomen, has not passed flatus, and reports nausea with no bowel sounds audible upon auscultation. These findings are most indicative of which postoperative complication?

Answer: Postoperative ileus

Postoperative ileus is a temporary and expected cessation of bowel motility following abdominal surgery. The classic signs include abdominal distention, nausea and vomiting, inability to tolerate an oral diet or pass flatus, and absent or hypoactive bowel sounds. [5, 11, 24] While an anastomotic leak or mechanical obstruction are serious considerations, this clinical picture is the hallmark of a functional postoperative ileus. [14, 22]