A nurse is caring for a client who is receiving a continuous heparin infusion. Which of the following laboratory tests should the nurse review prior to adjusting the client's heparin?

Choice A reason

Ensuring that the client's family supports the provider's decision for surgery is not an appropriate action. While family support is essential in the decision-making process, the primary responsibility lies with the client's health care surrogate or designated decision-maker. The family's support is not a substitute for obtaining informed consent from the designated decision-maker.

Choice B reason

Sending the unsigned informed consent form to the facility's risk manager is not appropriate action. The nurse should not send an unsigned informed consent form to the facility's risk manager. Unsigned consent forms do not have any legal significance or validity. The nurse should work with the health care surrogate to ensure that the consent form is appropriately completed and signed.

Choice C reason

Determining if the procedure is medically necessary for the client is not appropriate action. While the medical necessity of the procedure is important, the decision about the procedure's necessity should be made by the medical team and discussed with the health care surrogate. The nurse's role is to facilitate communication and ensure that the surrogate is informed and involved in the decision-making process.

Choice D reason

When a client is in a coma and unable to provide informed consent, the health care surrogate or designated decision-maker becomes responsible for making medical decisions on behalf of the client. It is essential for the nurse to ensure that the health care surrogate is aware of the situation, understands the risks and benefits of the surgical procedure, and has provided informed consent on behalf of the client.

- A. Diarrhea is not an adverse effect of amitriptyline, which is a tricyclic antidepressant (TCA). Diarrhea may be caused by other factors, such as infection, food intolerance, or stress. Therefore, this choice is incorrect.

- B. Frequent urination is not an adverse effect of amitriptyline either. Frequent urination may be a sign of diabetes, urinary tract infection, or other conditions that affect the kidneys or bladder. Therefore, this choice is also incorrect.

- C. Excessive salivation is not an adverse effect of amitriptyline as well. Excessive salivation may be due to increased production of saliva, difficulty swallowing, or mouth irritation. Therefore, this choice is incorrect too.

- D. Blurred vision is an adverse effect of amitriptyline and other TCAs. Amitriptyline can cause anticholinergic effects, such as dry mouth, constipation, urinary retention, and blurred vision. These effects are more pronounced in older adults and can impair their daily functioning and quality of life. Therefore, this choice is correct and the nurse should identify it as an adverse effect of the medication.