NCLEX-RN
NCLEX RN Predictor Exam
1. Specific gravity in urinalysis:
- A. compares the concentration of urine to that of distilled water
- B. is useless when the patient is dehydrated
- C. can only be measured using a refractometer
- D. None of the above
Correct answer: A
Rationale: Specific gravity in urinalysis measures the concentration of solutes in urine compared to that of distilled water. This comparison helps in assessing the kidney's ability to concentrate urine properly. It is a valuable test even in dehydrated patients as it provides insights into renal function. Specific gravity can be measured using various methods, including a refractometer or reagent strips. Normal specific gravity readings of human urine typically range from 1.005 to 1.030. Choice A is correct as it accurately describes the purpose of specific gravity in urinalysis. Choices B and C are incorrect as specific gravity remains relevant in dehydrated patients and can be measured using different techniques, not solely a refractometer.
2. The patient with migraine headaches has a seizure. After the seizure, which action can you delegate to the nursing assistant?
- A. Document the seizure
- B. Perform neurologic checks
- C. Take the patient's vital signs
- D. Restrain the patient for protection
Correct answer: C
Rationale: After a patient with migraine headaches has a seizure, it is important to assess their vital signs to monitor their condition. This task can be safely delegated to a nursing assistant as it falls within their scope of practice. Documenting the seizure and performing neurologic checks require a higher level of training and should be done by a nurse or healthcare provider. Restraint should never be used as a first-line intervention after a seizure unless there is an immediate threat to the patient's safety, and it should be done following proper protocols and with appropriate training.
3. The nurse is developing a plan of care for an infant after surgical intervention for imperforate anus. The nurse should include in the plan that which position is the most appropriate one for the infant in the postoperative period?
- A. Prone position
- B. Supine with no head elevation
- C. Side-lying with the legs extended
- D. Supine with the head elevated 45 degrees
Correct answer: A
Rationale: The most appropriate position for an infant after surgical intervention for imperforate anus is the prone position. Placing the infant in a prone position helps keep the hips elevated, reducing edema and pressure on the surgical site. This position promotes optimal healing and comfort for the infant. Option B, supine with no head elevation, does not provide the necessary elevation to reduce pressure on the surgical site. Option C, side-lying with the legs extended, does not offer the same benefits as the prone position in terms of reducing pressure on the surgical site. Option D, supine with the head elevated 45 degrees, does not specifically address the need for hip elevation to prevent pressure on the surgical site. Therefore, the correct choice is the prone position for this postoperative care scenario.
4. When dismissing a 5-year-old boy from the pediatrics unit, what type of seat belt restraint should the child wear as the parents drive the car to the front door of the hospital?
- A. A 5-point restraint in the back seat, facing backward
- B. A booster seat with a lap and shoulder belt in the back seat
- C. A lap belt in the back seat
- D. A lap and shoulder belt in the front seat
Correct answer: B
Rationale: A 5-year-old child riding in a car should use a restraint system for safety. The Centers for Disease Control and Prevention recommend that children under 13 years should not ride in the front seat of a car due to safety concerns. For a 5-year-old child, a booster seat with a lap and shoulder belt in the back seat is the most appropriate choice. This setup ensures proper protection and restraint for the child's size and age. Choice A is incorrect because a 5-point restraint system facing backward is not suitable for a 5-year-old child in a car. Choice C is incorrect as a lap belt alone does not provide adequate protection for a child of this age. Choice D is incorrect as children should not be seated in the front seat, especially at this young age.
5. When considering the structural organization of the human body, what is the basic unit of life?
- A. Chemicals
- B. Atoms
- C. Molecules
- D. Cells
Correct answer: D
Rationale: The basic unit of life is the cell. Cells are considered the fundamental unit of life because they are capable of carrying out all the processes necessary for life, such as growth, reproduction, responding to stimuli, and more. While chemicals, atoms, and molecules are essential components of cells and living organisms, they are not considered the basic unit of life. Chemicals are general substances, atoms are the smallest units of matter, and molecules are combinations of atoms. Therefore, the correct answer is cells, as they are the building blocks of all living organisms.
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