NCLEX-RN
Mock NCLEX RN Exam Questions
Extract:
Question 1 of 5
The physician has ordered intubation and mechanical ventilation for a client with periods of apnea following a closed head injury. Arterial blood gases reveal a pH of 7.47, PCO2 of 28, and HCO3 of 23. These findings indicate that the client has:
Correct Answer: B
Rationale: A pH of 7.47 (alkaline) with low PCO2 (28) indicates respiratory alkalosis, likely from hyperventilation due to brain injury. Normal HCO3 rules out metabolic causes.
Question 2 of 5
The nurse is performing an assessment on a client with a suspected diagnosis of cataracts. The chief complaint is likely to be:
Correct Answer: B
Rationale: Cataracts cause cloudy or blurry vision due to lens opacity. Eye pain, flashing lights, and redness are more associated with other conditions like glaucoma or retinal issues.
Question 3 of 5
The nurse is evaluating the evidence-based practice used for the units' client care standards. Which of the following provides the most support for evidence-based practice?
Correct Answer: B, D, E
Rationale: Evidence-based practice relies on practice guidelines (
B), research articles (
D), and systematic reviews (E) for high-quality evidence. Client preference (
A) and care plans (
C) are individualized but less rigorous.
Question 4 of 5
The physician has ordered Eskalith (lithium carbonate) 500 mg three times a day and Risperdal (risperidone) 2 mg twice daily for a client admitted with bipolar disorder, acute manic episodes. The best explanation for the client's medication regimen is:
Correct Answer: B
Rationale: Risperidone, an antipsychotic, is used to control acute manic symptoms like agitation, while lithium stabilizes mood over time, addressing the immediate behavioral excitement.
Question 5 of 5
The predominant purpose of the first Apgar scoring of a newborn is to:
Correct Answer: C
Rationale: Apgar scores are not related to the infant's care, but to the infant's physical condition. Apgar scores assess the current physical condition of the infant and are not related to future environmental adaptation. The purpose of the Apgar system is to evaluate the physical condition of the newborn at birth and to determine if there is an immediate need for resuscitation. Congenital malformations are not one of the areas assessed with Apgar scores.