CST study materials
CST study resources

Add-On at 19:20: Left, Right, and a Daughter Interpreting

CST · Put your knowledge to work in context.

All case studies

Add-On at 19:20: Left, Right, and a Daughter Interpreting

19:20. Add-on list. A 61-year-old Spanish-speaking man is scheduled for knee arthroscopy. The signed consent reads "left knee arthroscopy." Today's H&P reads "right knee pain, medial joint-line tenderness." The MRI report in the chart describes a left medial meniscus tear. The patient's adult daughter is interpreting and says his pain is "on the other side - the one he already had operated on." There is a healed 6 cm scar over the right knee. The surgeon, finishing a trauma case, calls through the door: "Just prep the left, the MRI is what matters - I'll re-mark when I get there." The patient is on the table, IV in place, and anesthesia is ready to induce.

1. Do you prep the leg? Why or why not?

Read the worked answer

No. Prep is a point of commitment.

Once the limb is prepped and draped, the wrong-site error is nearly irreversible and the whole room has implicitly accepted the site. Universal Protocol requires pre-procedure verification, site marking by the person who will perform the procedure, and a time-out immediately before the start. Marking happens before the prep so it stays visible.

  • State it once, plainly: "I'm holding prep until the site is marked and the records reconcile. Consent, H&P, and MRI disagree."
  • Notify anesthesia, who can decline to induce, and the charge nurse.
  • "I'll re-mark when I get there" is an acceptable plan only if nothing is prepped until he is physically present, has marked the site with the patient involved, and the documents agree.

Holding the prep is not insubordination. It is the last practical checkpoint before an irreversible act.

2. What exactly must be verified, by whom, before the incision?

Read the worked answer

Reconcile four things with the patient awake and a qualified interpreter: the consent, the H&P/progress note, the imaging report with the images, and the patient's own report. The healed scar on the right knee is a data point, not a tiebreaker. Any single disagreement is a full stop until the surgeon resolves it face to face with the patient.

Time-out requirements:

  • Entire team present and quiet, immediately before incision.
  • Active verbal confirmation from each member, not a chorus of "yes."
  • Patient identity by two identifiers, procedure, site and side, positioning.
  • Consent matches the procedure and side.
  • Imaging is available and displayed.
  • The mark is visible and matches the documents; the surgeon states that it does.
  • Allergies, antibiotic administration, implant sizes, and equipment concerns are confirmed.

If any team member cannot confirm, the case does not start. That is the point of the process.

3. What are the problems with using the daughter as interpreter, and how do you handle consent?

Read the worked answer

A family member is not an appropriate interpreter for consent or site verification.

  • Accuracy is the first problem: the daughter may summarize, soften, or answer for him. Note that she has already told you his pain is on the other side - a piece of information you cannot validate through her.
  • Confidentiality and role conflict are the second: an adult child may filter information, and the patient may not feel free to disagree in front of her.
  • Standards (accreditation and civil-rights expectations) call for a qualified medical interpreter, in person or by video or phone, with that use documented in the chart.

Consent must be obtained in a language the patient actually understands, with the interpreter identified and the conversation documented. If he cannot demonstrate understanding of the procedure, the side, and the material risks, the consent is not valid and the surgeon must re-obtain it with the interpreter present. Proceeding on the daughter's "yes" to protect the schedule compounds an invalid consent with a wrong-site risk.