The patient asks the nurse what the P Wave indicates on an EKG strip. The nurse informs the patient that the P Wave represents:

A) Have the client swish with commercial mouthwash before therapy:
Some commercial mouthwashes contain alcohol, which can be irritating to the mucous membranes, especially in clients undergoing chemotherapy. Chemotherapy can cause mucositis or stomatitis, making the oral cavity more sensitive, so alcohol-based mouthwashes should be avoided

B) Place fresh flowers in the client's room:
Fresh flowers are not recommended in the rooms of clients undergoing chemotherapy because they can introduce bacteria into the environment, which is particularly concerning for clients with weakened immune systems due to chemotherapy. Chemotherapy suppresses the immune system, increasing the risk of infection.

C) Tell the client to expect dark stools following chemotherapy:
Chemotherapy can cause a variety of gastrointestinal side effects, but dark stools are not a typical or expected side effect. Dark stools may indicate gastrointestinal bleeding, which requires immediate attention.

D) Administer an antiemetic prior to the procedure:
Chemotherapy commonly causes nausea and vomiting, and preemptive administration of antiemetic medications can help prevent these symptoms. The nurse should follow the healthcare provider's orders and administer antiemetics as prescribed, which can significantly improve the client's comfort and adherence to the treatment plan.

A) Use a razor to shave the hair in the treated area:
Shaving the treated area with a razor is not recommended during radiation therapy. The skin in the treated area becomes sensitive and fragile, so shaving could cause irritation, cuts, or abrasions. Instead, clients are usually advised to use electric razors or avoid shaving the area altogether. This instruction should not be followed to minimize the risk of injury.

B) Wash treated area gently with lukewarm water and mild soap:
This is a key self-care instruction for clients receiving radiation. Gentle cleansing with lukewarm water and mild soap helps to avoid further irritation to the skin, which can become dry and sensitive during radiation therapy. The treated area should not be scrubbed or rubbed, as this can cause damage to the skin, exacerbate dryness, or cause skin breakdown. This guideline is appropriate and should be followed.

C) Purchase aloe-approved skin-care products:
Using aloe vera or skin-care products approved for use during radiation therapy can help soothe and moisturize the skin, which often becomes dry, irritated, or sunburned from radiation. It is important to use products that are specifically designed for use during radiation to avoid any potential irritants or allergens. Aloe-based products or products recommended by the healthcare provider can provide relief and reduce side effects.

D) Wear loose-fitting, soft clothing over the treated skin:
Wearing loose-fitting, soft clothing is a crucial self-care recommendation for clients undergoing radiation. Tight or rough fabrics can irritate the sensitive skin, potentially leading to discomfort or skin breakdown. Soft fabrics like cotton are ideal, as they allow the skin to breathe and help avoid further friction or pressure on the treated area. This is an important aspect of skin protection during radiation therapy.

E) Sun tan the affected area for no more than 30 minutes a day:
Sun tanning or exposing the treated skin to direct sunlight is strictly forbidden during and after radiation therapy. The skin in the treated area is much more sensitive to UV radiation and can burn easily, even with minimal sun exposure. It can increase the risk of skin damage and delayed healing. The client should be advised to avoid direct sun exposure entirely and to wear protective clothing and sunscreen if they must be outdoors.