ATI RN
ATI Nproo 2100 Exam Unit 3 Fundamentals Exam Questions
Extract:
Question 1 of 5
A nurse is reviewing the arterial blood gas values for a client. The pH is 7.32, PaCO2 48 mm Hg, and the HCO3 is 23 mEq/L. The nurse should recognize that these findings indicate which of the following acid-base balances?
Correct Answer: A
Rationale: Low pH (7.32) and high PaCO2 (48 mm Hg) indicate respiratory acidosis from CO2 retention. Normal HCO3 suggests no metabolic compensation.
Question 2 of 5
Which class of antiretroviral drugs targets the stage of the HIV lifecycle by inhibiting RNA from forming DNA?
Correct Answer: C
Rationale: NRTIs inhibit reverse transcriptase, preventing viral RNA from forming DNA. Fusion inhibitors block entry, integrase inhibitors prevent DNA integration, and protease inhibitors affect viral maturation.
Question 3 of 5
In which stage of the HIV lifecycle does the enzyme integrase play a crucial role, and what is its function in that stage?
Correct Answer: B
Rationale: Integrase inserts viral DNA into the host genome during integration. Other stages involve different enzymes or processes.
Question 4 of 5
A nurse is caring for a client who has HIV. Which of the following laboratory values is the nurse's priority?
Correct Answer: A
Rationale: CD4-T-cell count of 180 cells/mm3 indicates AIDS and high risk for infections, making it the priority. Other values are normal or less urgent.
Question 5 of 5
A nurse is caring for a client who is at risk for shock. Which of the following findings is the earliest indicator that this complication is developing?
Correct Answer: C
Rationale: Increased respiratory rate is an early compensatory sign of shock to improve oxygenation. Anuria, hypotension, and altered consciousness occur later.