What is the "material risk" standard?

Roughly half the states use the reasonable-patient standard from Canterbury v. Spence (D.C. Cir. 1972): a risk is material if a reasonable patient in the patient's position would likely attach significance to it in deciding whether to undergo the procedure. The other half use the reasonable-physician standard: a risk must be disclosed if a reasonable physician in the same specialty would disclose it. In practice, surgeons should disclose: (1) any risk with non-trivial probability (>1%); (2) any catastrophic risk (death, paralysis, blindness, organ loss) regardless of probability; (3) anything the specific patient asks about.

Can I revoke consent after signing?

Yes, at any time before the procedure begins. Once you have been administered medications that impair decision-making (sedation, regional anesthesia, general anesthesia) revocation becomes more complicated; if the procedure has not started and you communicate refusal, the procedure must stop. After the procedure begins, the surgeon may still need to complete steps to safely conclude (e.g., close incisions). Document any revocation in the medical record.

What if a different procedure becomes necessary during surgery?

The "additional procedures" clause permits the surgeon to perform medically necessary additional procedures discovered during surgery — for example, removing an unexpected adhesion or repairing an iatrogenic injury. It does NOT authorize elective additions (e.g., cosmetic adjustments not previously discussed). The patient should specify in advance any procedures they would NOT consent to (e.g., "I do not consent to hysterectomy under any circumstances during this gallbladder surgery"). Best practice: discuss likely contingencies before surgery and document.

Does CMS require a specific form?

CMS does not specify the exact form, but 42 CFR § 482.51(b)(2) requires that the consent form be properly executed and in the medical record before the procedure (with limited emergency exceptions). The form must include name of patient, name of facility, procedure name, name of practitioner, statement of risks/benefits/alternatives, and signatures. Joint Commission Standard RI.01.03.01 elaborates further. Some states have specific statutory consent forms (e.g., Texas Medical Disclosure Panel List A/List B procedures); use those when applicable.

Surgical / Procedure Informed Consent Form

Procedure-specific informed consent — captures nature of procedure, material risks, alternatives, anesthesia consent, blood-products consent, and witness signatures.

Customise

Facility / hospital name

Facility address

Patient — full name

Patient — date of birth

Medical record number

Physician performing procedure (full name + credentials)

Specialty

Procedure — common name

CPT code (if known)

Scheduled procedure date

Nature of procedure (in plain language)

Intended benefit of the procedure

Material risks specific to this procedure

Reasonable alternatives (including no treatment)

Risks of refusing the procedure

Anesthesia consent

Blood / blood products consent

Photography / video for medical record or education

Tissue disposition (specimens removed)

Consent date

Consent time (HH:MM)

Witness — full name

Live preview

INFORMED CONSENT FOR SURGICAL / INVASIVE PROCEDURE

Facility:           Mount Hood Surgical Center
                    4600 NE Glisan St, Portland, OR 97213

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1. PATIENT IDENTIFICATION
═══════════════════════════════════════════════════════════════════════

Name:               Jordan Alex Taylor
DOB:                June 12, 1985
MRN:                MRN-MHSC-72104

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2. PROCEDURE
═══════════════════════════════════════════════════════════════════════

Procedure:          Laparoscopic cholecystectomy (gallbladder removal)
CPT code:           47562
Scheduled date:     June 4, 2026
Performing MD:      Dr. Priya Iyer, MD, FACS (General Surgery)

NATURE AND DESCRIPTION OF PROCEDURE
───────────────────────────────────

Removal of the gallbladder using a laparoscopic technique: 3-4 small incisions in the abdomen, a camera and surgical instruments inserted, gallbladder freed and removed via one incision. Procedure performed under general anesthesia. Typical duration 60-90 minutes. Most patients go home the same day.

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3. INTENDED BENEFIT
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Resolution of biliary colic and prevention of further complications from gallstones (e.g., cholecystitis, choledocholithiasis, biliary pancreatitis). Most patients have substantial relief of pre-procedure symptoms.

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4. MATERIAL RISKS
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The physician has explained, and I understand, that the following
risks are material to my decision. No procedure is risk-free; the
physician cannot guarantee a particular outcome.

Risks of laparoscopic cholecystectomy include, but are not limited to:
• Bleeding requiring transfusion (approximately 0.1-0.5%)
• Infection of incisions or abdomen (1-3%)
• Injury to bile duct (approximately 0.3-0.5% in experienced hands; may require further surgery)
• Injury to bowel, blood vessels, or other organs (less than 0.5%)
• Bile leak (0.5-1%)
• Conversion to open surgery (1-5%)
• Retained gallstones in bile duct (1-2%)
• Persistent pain or post-cholecystectomy syndrome (5-15%)
• Hernia at incision site (1-3% long-term)
• Anesthesia-related risks (see separate anesthesia consent)
• Death (less than 0.1% for elective surgery in healthy patients)

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5. REASONABLE ALTERNATIVES
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Reasonable alternatives include:
1. Continued observation with low-fat diet and pain management — risk of recurrent attacks and complications.
2. Medical management with ursodeoxycholic acid — limited efficacy; high recurrence; only for select patients.
3. Open cholecystectomy — larger incision, longer recovery, but appropriate in some anatomies.
4. ERCP for stone extraction without cholecystectomy — does not remove gallbladder; high recurrence.
5. No treatment — risk of progression to acute cholecystitis, biliary obstruction, pancreatitis, or sepsis.

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6. RISKS OF REFUSING THE PROCEDURE
═══════════════════════════════════════════════════════════════════════

Continued biliary colic; risk of acute cholecystitis (gallbladder infection, may require emergency surgery); risk of common bile duct obstruction; risk of gallstone pancreatitis (potentially life-threatening); risk of gallbladder gangrene or perforation.

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7. ANESTHESIA AND ANCILLARY CONSENTS
═══════════════════════════════════════════════════════════════════════

Anesthesia plan:    General anesthesia — separate consent obtained from anesthesiologist

Blood / blood products:
                    I consent to transfusion of blood or blood products if medically necessary

Photography / video:
                    I consent to photography for medical record only (not for publication or teaching)

Tissue / specimens:
                    Routine pathology and disposal per facility policy

═══════════════════════════════════════════════════════════════════════
8. ADDITIONAL ACKNOWLEDGEMENTS
═══════════════════════════════════════════════════════════════════════

I acknowledge that:

• The physician has discussed the above with me and answered all of my
  questions to my satisfaction.
• I have been advised that I may withdraw this consent at any time
  before the procedure begins.
• I have been informed that during the procedure, unforeseen conditions
  may require additional or different procedures than those planned.
  I authorize my physician to perform such additional procedures as
  are deemed medically necessary in the physician's professional
  judgment, except: __________________________________________________.
• If a resident, fellow, or trainee is part of my care team, I understand
  that they may participate in my procedure under the supervision of
  my attending physician.
• If equipment or instrumentation is provided by an industry
  representative, the representative will not be in the sterile field
  and will not perform any portion of the procedure.

═══════════════════════════════════════════════════════════════════════
9. SIGNATURES
═══════════════════════════════════════════════════════════════════════


_____________________________________     May 11, 2026  09:35
Patient signature                          Date            Time


_____________________________________     May 11, 2026
Physician signature (attestation that      Date
informed consent discussion was held
with the patient)


_____________________________________     May 11, 2026
Witness signature                          Date

Witness — printed name:  Maria Sanchez, RN

═══════════════════════════════════════════════════════════════════════
COPY TO PATIENT — ORIGINAL TO MEDICAL RECORD
═══════════════════════════════════════════════════════════════════════

About this template

Informed consent for a surgical or invasive procedure is one of the most legally and ethically important documents in medicine. The doctrine of informed consent — established in Schloendorff v. Society of New York Hospital (1914) ("Every human being of adult years and sound mind has a right to determine what shall be done with his own body") and refined through Canterbury v. Spence (D.C. Cir. 1972) — requires that a physician disclose what a reasonable patient would want to know before deciding. The modern legal standard varies by state: about half use the "reasonable patient" (materiality) standard from Canterbury, the other half use the "reasonable physician" (professional) standard from Natanson v. Kline (Kan. 1960). A third standard — the subjective standard, requiring disclosure of what THIS particular patient would want to know — is rare. Regardless of standard, every state requires disclosure of: (1) the nature of the procedure; (2) material risks; (3) reasonable alternatives including no treatment; (4) the consequences of refusing treatment; and (5) the identity of the surgeon and any non-physician participants in care. Materiality is judged by likelihood multiplied by severity — a 1% risk of paralysis is material; a 1% risk of mild bruising may not be. The form should also capture ancillary consents that are often forgotten: (a) anesthesia consent (typically obtained separately by the anesthesiologist, but the surgical consent should reference the planned anesthesia type); (b) blood products consent (especially important for Jehovah's Witnesses and other patients with religious objections — explicit refusal with risk acknowledgement is required); (c) photography and video for medical record vs. teaching vs. publication (HIPAA-compliant consent for any non-treatment use); (d) tissue disposition for any specimens removed (research use requires explicit authorization under the Federal Policy for the Protection of Human Subjects). The "additional procedures" clause is legally complex: courts have generally upheld surgeon discretion to perform medically necessary additional procedures discovered during surgery (e.g., addressing an unexpected adhesion), but have ruled against surgeons who performed elective additions not authorized in advance. Best practice is to discuss specific contingencies before surgery and document patient preferences. For high-risk procedures, the Centers for Medicare and Medicaid Services Conditions of Participation (42 CFR § 482.51) require a written informed consent in the medical record before the procedure, with limited exceptions for emergencies. State licensure boards and Joint Commission standards add additional requirements. This template provides a generic surgical consent suitable for most invasive procedures; specific procedures (cardiac surgery, neurosurgery, obstetric procedures, fertility procedures) often have specialty-specific consent forms with additional disclosures. The physician — not a nurse or assistant — must conduct the informed consent discussion, though staff may witness the signature. The discussion should occur in time and circumstances that allow meaningful patient deliberation; consent obtained on the day of surgery, in pre-op holding, after sedation, is highly suspect and may not be enforceable. Patients have the absolute right to revoke consent at any time before the procedure begins.

When to use it

Before any invasive surgical procedure (laparoscopic, open, endoscopic).
Before high-risk imaging procedures (cardiac catheterization, biopsy).
Before procedures with anesthesia (separate anesthesia consent recommended).
Before any procedure where material risks include death, serious injury, or permanent change in function.
Whenever state law or facility policy requires written informed consent.

What to include

Procedure name in plain language plus medical/CPT code.
Plain-language description of what will happen.
Intended benefit (avoid implying guarantee).
Material risks specific to this procedure with rough probabilities.
Reasonable alternatives including no treatment.
Risks of refusing treatment.
Anesthesia plan (separate anesthesia consent typically obtained).
Blood products consent / refusal with risk acknowledgement.
Photography / video consent (medical record vs. teaching vs. publication).
Tissue disposition (research use requires explicit authorization).
"Additional procedures" clause with patient-specified exclusions.
Trainee participation acknowledgement.
Signatures of patient, physician (attestation), and witness with date and time.

Frequently asked

The physician performing the procedure must conduct the informed-consent discussion personally. A nurse, physician assistant, or other staff member may be present and may witness the signature, but they cannot substitute for the physician's disclosure of risks, benefits, and alternatives. Joint Commission standards and CMS Conditions of Participation (42 CFR § 482.51) reinforce this requirement. Delegation to a non-physician has been the basis for successful informed-consent malpractice claims.

⚠ Legal disclaimer. Surgical informed consent is governed by state common law (the doctrine of informed consent — Schloendorff v. Society of New York Hospital, 1914; Canterbury v. Spence, D.C. Cir. 1972; Natanson v. Kline, Kan. 1960), state statutory law (some states have a Medical Disclosure Panel — e.g., Texas Civil Practice & Remedies Code § 74.101), federal Conditions of Participation for Medicare/Medicaid hospitals (42 CFR § 482.13(b)(2), § 482.51), and accreditation standards (Joint Commission RI.01.03.01). The "reasonable patient" vs. "reasonable physician" standard varies by state. Specific procedures may require specialty-specific consent forms (cardiac, neurosurgery, fertility, obstetric, transplant, experimental). Emergency exceptions apply when the patient is incapable of consent and immediate intervention is necessary. Not legal or medical advice — consult facility risk management and a licensed attorney for jurisdiction-specific requirements.

Jurisdiction: United States — state informed-consent doctrines (Canterbury v. Spence, D.C. Cir. 1972, reasonable-patient standard, ~25 states; Natanson v. Kline, Kan. 1960, reasonable-physician standard, ~25 states); state-specific informed-consent statutes (CA Prob. Code §4731 Health Care Decisions Law; Tex. Civ. Prac. & Rem. Code Ch. 74 Subch. C; Fla. Stat. §766.103 Florida Medical Consent Law; NY Pub. Health Law §2805-d; 40 P.S. §1303.504); CMS Conditions of Participation, 42 CFR §482.13(b)(2) + §482.51(b)(2); Joint Commission Standard RI.01.03.01.

Last reviewed: 2026-05

Reviewed by ScoutMyTool — consult a licensed attorney for binding use.