NCLEX-PN
Safe and Effective Care Environment Nclex PN Questions
1. Which sign might a healthcare professional observe in a client with a high ammonia level?
- A. coma
- B. edema
- C. hypoxia
- D. polyuria
Correct answer: A
Rationale: A high ammonia level can lead to hepatic encephalopathy, which includes symptoms like confusion, disorientation, and can progress to coma. Coma is a severe condition of unconsciousness. Edema is swelling caused by excess fluid trapped in body tissues, not typically associated with high ammonia levels. Hypoxia is a condition of inadequate oxygen supply to tissues and organs, not directly related to high ammonia levels. Polyuria is excessive urination, which is not a typical sign of high ammonia levels.
2. What information does the healthcare provider remember regarding do-not-resuscitate (DNR) orders in this scenario?
- A. That a DNR order may be written by a healthcare provider
- B. That everything possible must be done if the client stops breathing
- C. That medications only may be given to the client if the client stops breathing
- D. That life support measures will have to be implemented if the client stops breathing
Correct answer: A
Rationale: In a situation where a client has no family members and the client's wife is mentally incompetent, the healthcare provider may write a DNR order if it is deemed medically certain that resuscitation would be futile. A DNR order is a medical directive that instructs healthcare providers not to perform CPR if a patient's heart stops or if the patient stops breathing. Option A is correct because a DNR order can indeed be issued by a healthcare provider under certain circumstances, as it is a medical decision. Options B, C, and D are incorrect as they do not accurately reflect the concept of DNR orders and the decision-making process involved in such situations.
3. A client is diagnosed with HIV. Which of the following antiviral drug classes are used in the treatment of HIV/AIDS?
- A. nucleoside reverse transcriptase inhibitors
- B. protease inhibitors
- C. HIV fusion inhibitors
- D. all of the above
Correct answer: D
Rationale: All of the provided choices are antiviral drug classes used in the treatment of HIV/AIDS. Nucleoside reverse transcriptase inhibitors, such as tenofovir and emtricitabine, work by interfering with the virus's ability to replicate. Protease inhibitors, like atazanavir and darunavir, block an enzyme that HIV needs to make copies of itself. HIV fusion inhibitors, for instance, enfuvirtide, prevent HIV from entering human cells. Therefore, 'all of the above' is the correct answer as all the listed drug classes are commonly used in managing HIV infections. Choices A, B, and C are all essential components of antiretroviral therapy for HIV, targeting different stages of the virus's life cycle. The combination of drugs from these classes is often recommended to effectively control HIV replication and reduce viral load.
4. Which of the following lab values is associated with a decreased risk of cardiovascular disease?
- A. high HDL cholesterol
- B. low HDL cholesterol
- C. low total cholesterol
- D. low triglycerides
Correct answer: B
Rationale: High HDL cholesterol is associated with a decreased risk of cardiovascular disease because HDL cholesterol is known as 'good' cholesterol. It helps remove other forms of cholesterol, like LDL cholesterol, from the bloodstream, reducing the risk of plaque buildup in the arteries. Low HDL cholesterol (Choice B) is actually a risk factor for cardiovascular disease because it means there is less of the 'good' cholesterol to perform its protective functions. Low total cholesterol (Choice C) and low triglycerides (Choice D) are not necessarily associated with a decreased risk of cardiovascular disease, as the balance and types of cholesterol play a more crucial role in heart health.
5. 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.
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