NCLEX-RN
NCLEX RN Predictor Exam
1. When printing out an EKG, a nurse notices that the QRS complexes are extremely small. What should be the next step?
- A. Alert the physician immediately as this is a sign of impending cardiac arrest.
- B. Check to see that all leads are attached and rerun the EKG.
- C. Increase the sensitivity control to 20 mm deflection.
- D. Decrease the run speed to 50.
Correct answer: C
Rationale: Increasing the sensitivity control to 20 mm deflection will double the sensitivity, allowing for better observation of the small QRS complexes. This step is crucial in obtaining a clearer EKG reading. Choice A is incorrect because small QRS complexes do not necessarily indicate impending cardiac arrest; it's more likely a technical issue. Choice B is not the first step to take when small QRS complexes are observed; it's important to adjust the settings first. Choice D is incorrect because decreasing the run speed to 50 is not the appropriate action for this situation; adjusting the sensitivity control is more relevant to improve the visualization of the complexes.
2. In which of the following ways can a healthcare provider promote the sense of taste for an older adult?
- A. Mixing foods together on the dinner tray
- B. Avoiding cologne, air fresheners, or room deodorizers
- C. Encouraging the client to chew food thoroughly
- D. Discouraging the use of salt or seasonings with prepared food
Correct answer: C
Rationale: As individuals age, their sense of taste may diminish, impacting the enjoyment of eating. One effective way for a healthcare provider to promote the sense of taste for an older adult is by encouraging them to chew food thoroughly. Thorough chewing increases the contact of food with the taste buds, enhancing the chances of experiencing the flavors. Mixing foods together on the dinner tray may not necessarily enhance taste perception. Avoiding strong scents like cologne, air fresheners, or room deodorizers is more related to olfactory senses rather than taste. Discouraging the use of salt or seasonings can further diminish the taste experience for older adults who may already have reduced taste sensitivity.
3. During an examination of a patient's abdomen, the nurse notes that the abdomen is rounded and firm to the touch. During percussion, the nurse notes a drum-like quality of the sounds across the quadrants. How would the nurse interpret this type of sound?
- A. Constipation
- B. Air-filled areas
- C. Presence of a tumor
- D. Presence of dense organs
Correct answer: B
Rationale: A musical or drum-like sound (tympany) is heard when percussion occurs over an air-filled viscus, such as the stomach or intestines. This indicates the presence of air-filled areas. Constipation, choice A, does not produce specific percussion sounds and is related to bowel movements rather than the sound produced during percussion. The presence of a tumor, choice C, would not typically produce a drum-like sound but might result in dullness or decreased resonance. Dense organs, choice D, would produce a dull thud sound rather than a drum-like tympanic sound.
4. While percussing over the liver of a patient, the nurse notices a dull sound. What should the nurse do?
- A. Consider this a normal finding
- B. Palpate this area for an underlying mass
- C. Reposition the hands and attempt to percuss in this area again
- D. Consider this finding as abnormal and refer the patient for additional treatment
Correct answer: A
Rationale: When percussing over relatively dense organs, such as the liver or spleen, a dull sound is a normal finding due to the organ's density. This occurs because the sound waves produced by tapping on the organ travel through the dense tissue, resulting in a dull sound. Therefore, the correct action for the nurse in this scenario is to consider a dull sound over the liver as a normal finding. Palpating for an underlying mass (Choice B) is not indicated based on the percussion finding alone. Repositioning the hands and repeating the percussion (Choice C) may not change the dull sound over the liver. Referring the patient for additional treatment (Choice D) without understanding the normal percussion findings over the liver would be premature. Thus, the most appropriate action is to interpret the dull sound as a normal finding.
5. Which practice will help reduce the risk of a needlestick injury?
- A. Expose the end of the needle only when ready to enter the room for the procedure
- B. Never recap a needle after use
- C. Keep a sharps container nearby where it can be easily accessed
- D. Exchange needles from a central area rather than passing them between workers
Correct answer: C
Rationale: To reduce the risk of a needlestick injury, it is essential to keep a sharps container nearby where it can be easily accessed. This practice ensures quick and safe disposal of needles after use, minimizing the chances of accidental needlesticks. Recapping needles should be avoided as it increases the risk of injuries. Passing needles between workers should also be avoided to prevent accidental needle pricks during handovers. Therefore, the best practice to prevent needlestick injuries is to maintain a sharps container nearby for safe and immediate disposal of needles.
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