The nurse administers atenolol 50 mg PO bid to a client who has coronary artery disease. The nurse understands that the therapeutic effect of this medication for this client is to:

Choice A reason: This is the correct answer. Stool for occult blood is a diagnostic test that detects the presence of hidden blood in the feces. This can indicate bleeding in the gastrointestinal tract, which is the most common cause of chronic iron deficiency anemia. Iron deficiency anemia is a condition where the body does not have enough iron to produce hemoglobin, the protein that carries oxygen in the red blood cells.

Choice B reason: Vitamin B12 level is not the diagnostic test that is used to detect the most common cause of chronic iron deficiency anemia. Vitamin B12 level is a blood test that measures the amount of vitamin B12 in the body. Vitamin B12 is a nutrient that is essential for the production of red blood cells and the maintenance of the nervous system. Vitamin B12 deficiency can cause pernicious anemia, a type of megaloblastic anemia where the red blood cells are large and immature.

Choice C reason: Schilling's test is not the diagnostic test that is used to detect the most common cause of chronic iron deficiency anemia. Schilling's test is a urine test that evaluates the absorption of vitamin B12 in the body. It involves giving the client an oral dose of radioactive vitamin B12 and an intramuscular injection of non-radioactive vitamin B12. The urine is then collected and measured for the amount of radioactive vitamin B12. Schilling's test can help diagnose pernicious anemia and other causes of vitamin B12 malabsorption.

Choice D reason: Bone marrow aspiration study is not the diagnostic test that is used to detect the most common cause of chronic iron deficiency anemia. Bone marrow aspiration study is a procedure that involves taking a sample of bone marrow from the hip or sternum and examining it under a microscope. Bone marrow is the soft tissue inside the bones that produces blood cells. Bone marrow aspiration study can help diagnose various blood disorders, such as leukemia, lymphoma, and aplastic anemia.

Choice A reason: It is not the best intervention to exclude the family from the exercise program. Family involvement can provide support, motivation, and accountability for the client. Family members can also participate in the exercise program and benefit from its positive effects on blood pressure and overall health.

Choice B reason: This is the best intervention to help the client maintain the exercise program. Adapting the program to the client's needs and abilities ensures that the exercise is appropriate, safe, and effective for the client. It also increases the client's confidence, satisfaction, and adherence to the program.

Choice C reason: Providing the client with specific details of how to perform the exercises is an important intervention, but not the best one. The client may still have difficulties or barriers to maintaining the exercise program, such as lack of time, resources, or motivation. The nurse should also assess the client's readiness, preferences, and goals for the exercise program.

Choice D reason: Reassuring the client that they will be able to do the exercise program is a supportive intervention, but not the best one. The client may not feel reassured if the exercise program is too challenging, unrealistic, or unappealing for them. The nurse should also monitor the client's progress, feedback, and outcomes of the exercise program.