NCLEX-PN
Nclex Exam Cram Practice Questions
1. The nurse is teaching a client about sleep and gives background information on normal sleep patterns. Which of the following substances promotes sleep?
- A. serotonin
- B. cortisol
- C. alcohol
- D. narcotics
Correct answer: A
Rationale: Serotonin is a substance found in the body that promotes sleep. It plays a role in the synthesis of a hypnogenic factor that directly induces sleep. Cortisol is a stress hormone that can disrupt sleep patterns. Alcohol can disrupt REM sleep and negatively impact sleep quality. Narcotics, like alcohol, can interfere with sleep architecture and lead to poor quality sleep. Therefore, the correct answer is serotonin as it is associated with promoting sleep, while the other substances listed can have negative effects on sleep patterns.
2. After administering medication through an NG tube, the client asks if he can lie down when the nurse leaves the room. What is the most appropriate response?
- A. You can lie down in 1 hour.
- B. You can lie down in 5 minutes if your NG residual is below 50 mLs.
- C. You can lie down in about 30 minutes.
- D. Yes, feel free to lie down.
Correct answer: C
Rationale: The correct answer is to inform the client that they can lie down in about 30 minutes. After administering medication through an NG tube, it is recommended that the client remains upright for about 30 minutes to ensure proper absorption of the medications. Option A is incorrect as waiting for 1 hour is unnecessary. Option B is incorrect as the specified timeframe and condition given are not standard practice for lying down after NG tube medication administration. Option D is incorrect as it lacks guidance on the appropriate waiting time and does not emphasize the importance of waiting before lying down for optimal medication absorption.
3. An advance directive is written and notarized according to law in the state of Colorado. This document is legal and binding:
- A. internationally.
- B. in the state of Colorado only.
- C. in the continental United States.
- D. in the county of origination only.
Correct answer: B
Rationale: The correct answer is 'in the state of Colorado only.' Advance directive protocols and documents are specific to each state's laws and regulations. Choice A is incorrect as advance directives are not universally recognized internationally. Choice C is incorrect as the legal validity of an advance directive is limited to the state in which it was created. Choice D is incorrect as the legal reach of an advance directive typically extends throughout the state of origination, not just the county.
4. When the nurse is determining the appropriate size of an oropharyngeal airway to insert, what part of a client's body should she measure?
- A. corner of the mouth to the tragus of the ear
- B. corner of the eye to the top of the ear
- C. tip of the chin to the sternum
- D. tip of the nose to the earlobe
Correct answer: B
Rationale: Correct! When sizing an oropharyngeal airway, the nurse should measure from the corner of the client's mouth to the tragus of the ear. This measurement ensures that the airway is the appropriate length to reach the pharynx without being too long or too short. Choices B, C, and D are incorrect as they do not provide the correct anatomical landmarks for determining the size of an oropharyngeal airway. Measuring from the corner of the mouth to the tragus of the ear is a standard method to ensure proper airway size and prevent complications during airway management.
5. How far should the enema tube be inserted for a client to have a flatus-reducing enema?
- A. 4 inches.
- B. 6 inches.
- C. 2 inches.
- D. 8 inches.
Correct answer: A
Rationale: The correct answer is to insert the enema tube 4 inches. Enema tubing must be passed beyond the internal sphincter, which is typically around 4 inches in an adult. Inserting the tube only 2 inches is not far enough to reach this point. On the other hand, inserting the tube 6 or 8 inches is too far and might cause trauma to the bowel, which is unnecessary for a flatus-reducing enema. Therefore, the correct insertion depth of the enema tube is crucial to ensure effectiveness and safety in providing the intended treatment.
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