NCLEX-RN
NCLEX RN Predictor Exam Questions
Extract:
Question 1 of 5
Which is the most effective action for controlling the spread of infection?
Correct Answer: A
Rationale: Thorough hand hygiene is the most effective action for controlling the spread of infection as hands are a common source of transmission. Regular and routine hand hygiene helps prevent the movement of potentially infective materials. Wearing gloves and masks is important when providing direct client care to protect both the caregiver and the patient, but it is not as effective as thorough hand hygiene in preventing overall infection spread. Implementing appropriate isolation precautions is necessary for clients with known communicable diseases, but it is not as universally effective in preventing the spread of various infections. Administering broad-spectrum prophylactic antibiotics is not an appropriate measure for controlling the spread of infection as routine use can lead to superinfection and the development of resistant organisms.
Question 2 of 5
Which of the following activities would the nurse perform during the diagnosing phase of the nursing process? Select all that apply.
Correct Answer: B
Rationale: During the diagnosing phase of the nursing process, the nurse analyzes the collected data to identify problems, risks, and client strengths, which then leads to developing nursing diagnoses. Collecting and organizing client information is part of the assessment phase, where data is gathered. Developing nursing diagnoses comes after data analysis in the diagnosing phase. Goal setting is a component of the planning phase, which follows the diagnosing phase.
Question 3 of 5
What is the BEST blood collection location for a newborn?
Correct Answer: C
Rationale: When collecting blood from newborns, it is safest and most commonly done by collecting blood from the lateral or medial aspect of the baby's heel. This location is preferred due to the accessibility of the veins and the minimal discomfort caused to the newborn. Veins in the forehead are not commonly used for blood collection in newborns. The fingertips are not optimal for blood collection in newborns due to their small size and the potential for causing discomfort. The AC (antecubital) area, typically used in adults for blood collection, is not recommended for newborns due to the size of their veins and the potential risk of injury.
Question 4 of 5
After instructing the client on crutch walking technique, the nurse should evaluate the client's understanding by using which of the following methods?
Correct Answer: A
Rationale: After teaching the client on crutch walking technique, assessing the client's understanding is crucial. The most effective method to evaluate the client's comprehension of a hands-on skill like crutch walking technique is through a return demonstration. This allows the nurse to observe the client performing the technique, ensuring they have grasped the instructions correctly and can execute the skill safely. While providing an explanation can help clarify doubts, it may not confirm the client's ability to perform the skill. Achieving a high score on a written test assesses cognitive understanding but not necessarily the practical application of the skill. Having the client explain the procedure to the family does not directly assess their ability to perform the skill themselves; it tests their ability to communicate the information to others.
Question 5 of 5
In the Gram Stain procedure, which component acts as the mordant?
Correct Answer: C
Rationale: In the Gram Stain procedure, the mordant is Gram's Iodine. The purpose of the mordant is to form a complex with the crystal violet, enhancing its ability to bind to the cell wall. Crystal violet is actually the primary stain used in the Gram Stain procedure to initially color all cells. Methyl alcohol is the decolorizer that removes the crystal violet from certain cell types. Safranin is the counterstain used to stain those cells that did not retain the crystal violet stain after the decolorization step.