ATI Medical Surgical Proctored Exam

Correct Answer: B

Rationale: For clients on heparin therapy, a PTT value of 1.5 to 2.5 times the normal range is required to ensure therapeutic anticoagulation. The normal PTT range is 25 to 35 seconds. In this case, the client's PTT of 25 seconds falls below the therapeutic range, indicating that the heparin dose is insufficient. Therefore, the nurse should anticipate increasing the heparin rate to achieve the desired therapeutic effect.

Correct Answer: B

Rationale: Patients prescribed carbidopa-levodopa should be informed that it may take several weeks for the medication to reach its full therapeutic effectiveness in managing Parkinson's disease symptoms. This delayed onset of action is important for patients to be aware of to prevent premature discontinuation of the medication due to perceived lack of efficacy.

Correct Answer: C

Rationale: A large blood clot in the lungs will significantly impair gas exchange & oxygenation. Unless the clot is dissolved, this process will continue unabated.

Correct Answer: D

Rationale: After a total hip replacement, clients should avoid bending at the waist past 90 degrees for at least 6 weeks to prevent dislocation of the hip prosthesis. Bending down to tie shoes involves significant hip flexion and should be avoided during the initial postoperative period to ensure proper healing and reduce the risk of complications.

Correct Answer: B

Rationale: Clients with a history of heart failure generally have negative findings, such as shortness of breath. The nurse needs to determine whether the client's activity is the same or worse, or whether the client identifies a decrease in activity level. Trouble breathing, chest pain, breathlessness at night & peripheral edema are symptoms of heart failure, but do not provide data that can determine the extent of the client's heart failure.