A nurse is caring for a client in the ICU. The client's ECG monitor tracing reveals sinus bradycardia and ST-segment elevation. The client reports shortness of breath and feeling dizzy and faint. Which of the following medications should the nurse administer?

Choice A reason: Checking the pulse distal to the graft is essential to ensure that the graft is patent and that there is adequate blood flow to the distal extremity. A palpable pulse indicates that the graft is functioning properly and not occluded. The absence of a pulse could signify a serious complication, such as thrombosis or stenosis, which requires immediate attention.

Choice B reason: Keeping the left forearm below the level of the heart is not recommended as it can increase venous pressure and swelling, potentially compromising graft function. The extremity should be kept at or above heart level to promote venous return and reduce the risk of edema.

Choice C reason: Collecting blood specimens from the graft is generally avoided to prevent damage to the graft. Blood draws can be performed from other sites to protect the integrity of the graft.

Choice D reason: Splinting the left forearm is not a standard postoperative care measure for an arteriovenous graft. While protecting the graft from injury is important, immobilization with a splint is not necessary and can impede mobility and circulation.

Choice A reason: Constipation can be a side effect of many cancer treatments, including radiation therapy. However, it is not commonly associated with targeted radiation therapy to the neck. Constipation is more often related to opioid pain medications, decreased physical activity, or dietary changes that a patient may experience during cancer treatment.

Choice B reason: Decreased tear production is not a typical side effect of targeted radiation therapy to the neck. This condition, known as dry eye syndrome, is more commonly associated with radiation therapy that affects the eye or orbital area directly.

Choice C reason: Mouth ulcers, also known as mucositis, are a common adverse effect of radiation therapy to the neck. Radiation can damage the mucosal lining of the mouth, leading to painful sores that can affect a patient's ability to eat, speak, and swallow. These ulcers typically develop one to two weeks after starting treatment and may persist for some time after the treatment ends.

Choice D reason: Peripheral neuropathy, which involves damage to the peripheral nerves and often results in symptoms like numbness, tingling, or pain in the hands and feet, is not a common side effect of radiation therapy to the neck. It is more frequently associated with certain chemotherapeutic agents or radiation therapy to areas of the body where peripheral nerves are located.