A nurse is collecting data from a client prior to administering atenolol.
For which of the following findings should the nurse withhold the medication?

Choice A rationale: Tuberculosis treatment with rifampin typically lasts 6 to 9 months. Lifelong therapy is not required for TB, and unnecessary prolonged use increases the risk of drug resistance and hepatotoxicity.

Choice B rationale: Rifampin induces liver enzymes that accelerate the metabolism of oral contraceptives, making them less effective. It does not cause amenorrhea, but it necessitates the use of non-hormonal backup contraception.

Choice C rationale: Rifampin causes a harmless reddish-orange discoloration of urine, sweat, tears, and saliva. This can permanently stain soft contact lenses, so clients are advised to wear eyeglasses during the treatment course.

Choice D rationale: A yellow tint to the skin or sclera indicates jaundice, which is a sign of hepatotoxicity. This is a serious adverse effect rather than an expected reaction and must be reported immediately.

Choice A rationale:

Skipping coffee on the morning of the exercise ECG stress test is a good idea as caffeine can affect heart rate and blood pressure, but it doesn't necessarily indicate the need for further instructions.

Choice B rationale:

Getting 8 hours of sleep the night before the test is a positive choice and promotes overall well-being, but it is not a specific indicator of needing further instructions for the test.

Choice C rationale:

Not smoking before the test is an appropriate action, as smoking can also affect heart rate and blood pressure during the test. However, it does not indicate a need for further instructions.

Choice D rationale:

Expecting to feel chest pain during an exercise ECG stress test is not correct and indicates a need for further instructions. Chest pain during the test can be a sign of cardiovascular issues and should be reported immediately.