Iowa Code 147A.10(2)
Liability: Failure to Obtain Consent
A physician, advanced registered nurse practitioner, physician assistant, registered nurse, licensed practical nurse, or emergency medical provider, who does not obtain consent prior to providing emergency medical care to a person unable to give consent, will not be held legally responsible.
Exemptions from liability in certain circumstances
2. A physician, physician’s designee, advanced registered nurse practitioner, physician assistant, registered nurse, licensed practical nurse, or emergency medical care provider shall not be subject to civil liability solely by reason of failure to obtain consent before rendering emergency medical, surgical, hospital or health services to any individual, regardless of age, when the patient is unable to give consent for any reason and there is no other person reasonably available who is legally authorized to consent to the providing of such care.