For which of the following procedures is verbal consent sufficient?

A. Right to change insurance companies during treatment: This is not part of the Patient's Bill of Rights. Changing insurance companies is subject to policy terms and regulations, not patient rights.
B. Right to refuse treatment: This is correct. The Patient’s Bill of Rights includes the right for patients to refuse treatment, even if that treatment is recommended by their healthcare provider.
C. Right to a timely visit: While timeliness is important, the Patient’s Bill of Rights does not specifically guarantee a timely visit.
D. Right to a specialist outside their network at no cost: This is not guaranteed under the Patient's Bill of Rights. Specialist visits, especially out-of-network, are typically governed by insurance coverage rules.

A. Taking aspirin within 12 hr of testing: Aspirin does not generally affect spirometry results.
B. Using sedatives within 1 hr of testing: Sedatives may affect respiratory function, but they are not a common consideration for spirometry preparation.
C. Exercising 2 hr prior to testing: Exercise can affect lung function temporarily, so it’s best to avoid vigorous exercise before a spirometry test.
D. Eating a heavy meal 4 hr prior to testing: While eating a heavy meal might cause some discomfort, it is less likely to affect the spirometry results significantly compared to exercise.