when printing out an ekg a nurse notices that the qrs complexes are extremely small what should be the next step
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Nursing Elites

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?

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. An Asian-American woman is experiencing diarrhea, which is believed to be "cold"? or "yin."? What should the nurse recognize that the woman may likely try to treat it?

Correct answer: A

Rationale: In this scenario, the Asian-American woman is believed to be experiencing diarrhea due to a "cold"? or "yin"? imbalance. According to the yin/yang theory, yang represents heat and yin represents cold. Therefore, to balance the cold nature of the diarrhea, the woman may try to treat it by consuming foods that are considered "hot"? or "yang"?. This aligns with the concept that cold foods are eaten with a hot illness, and hot foods are eaten with a cold illness. Choices B, C, and D do not align with the yin/yang theory and are not relevant to addressing the imbalance associated with the cold nature of the diarrhea.

3. All of the following factors may contribute to client falls EXCEPT:

Correct answer: A

Rationale: Client falls can result from various factors, both intrinsic and extrinsic. Intrinsic factors include health conditions like urinary frequency, which increases the need for bathroom visits, decreased visual acuity, and confusion. These factors can directly contribute to an increased risk of falls. However, contact dermatitis does not directly lead to falls. Contact dermatitis is a skin condition caused by contact with irritants or allergens and does not inherently predispose individuals to falling. Therefore, among the given options, contact dermatitis is the only factor that is not directly associated with an increased risk of falls.

4. 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?

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.

5. 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?

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.

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