A nurse discovers that a client has been administered a higher dose of oxybutynin than the prescription indicates. The nurse should assess the client for which of the following adverse effects?

The nurse should report to the provider that the client is taking ginkgo biloba. Ginkgo biloba is an herbal supplement that can interact with clopidogrel and other antiplatelet medications. It may increase the risk of bleeding when taken concurrently with clopidogrel, which is an antiplatelet medication used to prevent blood clots after coronary artery stenting.

Let's go through the other options:

A. The client is taking acetaminophen: Acetaminophen is not known to have significant interactions with clopidogrel. It is a commonly used pain reliever and fever reducer and does not usually affect the antiplatelet activity of clopidogrel.

B. The client is taking valerian: Valerian is an herbal supplement often used as a sleep aid or to reduce anxiety. While there is limited evidence of significant interactions with clopidogrel, it is generally recommended to use caution when combining valerian with antiplatelet medications. However, it is not as concerning as ginkgo biloba in terms of potential bleeding risk.

C. The client is taking vitamin B6: Vitamin B6 is a water-soluble vitamin and is not expected to have significant interactions with clopidogrel. It is generally considered safe to use vitamin B6 with antiplatelet medications like clopidogrel.

When providing discharge teaching to a client with a prescription for enoxaparin, the nurse should include the instruction to expel the air bubble prior to injecting the medication. Enoxaparin is a type of anticoagulant medication that is administered as a subcutaneous injection.

Here's why the other options are incorrect:

A. Insert the needle at a 45 angle: Enoxaparin is typically administered as a subcutaneous injection, where the needle is inserted at a 90-degree angle (straight into the skin). A 45-degree angle is used for intramuscular injections, but it is not appropriate for enoxaparin administration.

B. Inject the medication into a muscle: Enoxaparin is not intended to be injected into a muscle. It is a low-molecular-weight heparin designed for subcutaneous administration, meaning it is injected just below the skin into the fatty tissue.

C. Rub the injection site following administration: Rubbing the injection site after administering enoxaparin or any other subcutaneous medication is not recommended. Rubbing the site can cause irritation and bruising. Instead, the nurse should apply gentle pressure with a cotton ball or gauze pad for a few seconds after the injection to help minimize bleeding.