ATI RN
Theoretical Basis for Behavior Modification Questions
Question 1 of 5
Matilda, with hyperthyroidism is to receive Lugol's iodine solution before a subtotal thyroidectomy is performed. The nurse is aware that this medication is given to:
Correct Answer: D
Rationale: Step 1: Lugol's iodine solution is given to decrease the size and vascularity of the thyroid gland. Step 2: By reducing the size and blood supply to the thyroid gland, surgery becomes safer and easier. Step 3: A, B, and C are incorrect: A: Lugol's iodine solution does not decrease the total basal metabolic rate. B: It does not maintain the function of the parathyroid glands. C: It does not block the formation of thyroxine; instead, it reduces the size and vascularity of the thyroid gland.
Question 2 of 5
During a routine checkup, Nurse Mariane assesses a male client with acquired immunodeficiency syndrome (AIDS) for signs and symptoms of cancer. What is the most common AIDS-related cancer?
Correct Answer: D
Rationale: The correct answer is D: Kaposi's sarcoma. This is the most common AIDS-related cancer, caused by human herpesvirus 8. It presents as reddish-purple skin lesions and can also involve internal organs. It is more prevalent in individuals with weakened immune systems, such as those with AIDS. Squamous cell carcinoma (A) is a type of skin cancer not directly linked to AIDS. Multiple myeloma (B) is a cancer of plasma cells, not commonly associated with AIDS. Leukemia (C) is a cancer of blood cells and is not the most common cancer seen in AIDS patients.
Question 3 of 5
Nurse Kate is aware that one of the following classes of medication protect the ischemic myocardium by blocking catecholamines and sympathetic nerve stimulation is:
Correct Answer: A
Rationale: The correct answer is A: Beta-adrenergic blockers. These medications protect the ischemic myocardium by blocking catecholamines and sympathetic nerve stimulation, reducing the workload of the heart and oxygen demand. Beta blockers slow heart rate, decrease blood pressure, and improve coronary blood flow. Calcium channel blockers (B) primarily work by relaxing blood vessels and reducing the heart's workload. Narcotics (C) are pain-relieving medications and do not directly protect the ischemic myocardium. Nitrates (D) dilate blood vessels to improve blood flow but do not specifically block catecholamines and sympathetic nerve stimulation.
Question 4 of 5
Which of the following drugs would be ordered by the physician to improve the platelet count in a male client with idiopathic thrombocytopenic purpura (ITP)?
Correct Answer: B
Rationale: The correct answer is B: Corticosteroids. Corticosteroids are commonly prescribed to increase platelet count in ITP by suppressing the immune system's attack on platelets. ASA (choice A) can actually worsen bleeding in ITP. Methotrexate (choice C) is used for other autoimmune conditions, not ITP. Vitamin K (choice D) is not effective in treating ITP as it is involved in the clotting process, not platelet production.
Question 5 of 5
Nurse Sugar is assessing a client with Cushing's syndrome. Which observation should the nurse report to the physician immediately?
Correct Answer: B
Rationale: The correct answer is B: An irregular apical pulse. In Cushing's syndrome, excess cortisol can lead to cardiac arrhythmias. An irregular apical pulse indicates potential cardiac issues requiring immediate attention. Pitting edema (A) is common in conditions like heart failure. Dry mucous membranes (C) can be due to dehydration. Frequent urination (D) can be caused by conditions like diabetes. However, an irregular pulse is the most urgent concern due to the risk of serious cardiac complications.