each small square on the ekg paper is
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Nursing Elites

NCLEX-RN

NCLEX RN Predictor Exam

1. Each small square on the EKG paper is:

Correct answer: 0.04 seconds long and 1mm tall

Rationale: Each small square on an EKG paper represents 0.04 seconds long and 1mm tall. This standardization is essential for accurate measurements. One large square on EKG paper consists of 5 small squares in length and 5 small squares in height, which equals 0.2 seconds long and 5mm tall (0.5 mV). Choice A is incorrect because while the duration is correct, the height mentioned is not accurate. Choice B is incorrect as it provides the correct height but the duration is inaccurate. Choice C is incorrect as the height mentioned is exaggerated, and the duration is correct but the height is not. Therefore, the correct answer is 0.04 seconds long and 1mm tall.

2. As a valued member of the team on your nursing care unit, you are trying to determine whether the team is doing well. Which of the following is a sign that your team is successful?

Correct answer: Conflict occurs but is seen as an opportunity for team growth and development.

Rationale: One of the key indicators of a successful team is the ability to handle conflict positively. Conflict, when managed well, can lead to team growth and development. Choice B is incorrect because suppressing negative feelings does not indicate team success; open communication is crucial. Choice C is incorrect as successful teams view mistakes as learning opportunities rather than resorting to disciplinary action. Choice D is incorrect because successful teams are often innovative and willing to take risks rather than maintaining the status quo.

3. A healthcare professional is employed at a district health department and must spend several hours each day sitting at a desk. Which principle of ergonomics will most likely help them to reduce the risk of injury or pain in this situation?

Correct answer: Adjust the chair height to keep the legs bent at the hips at a 90-degree angle

Rationale: When sitting for prolonged periods, it is important to adjust the height of the chair so that the legs are bent at the hips at a 90-degree angle. This position helps to reduce pressure on the back, legs, and feet, promoting better posture and reducing muscle fatigue. Standing up and moving around at least once every hour is crucial to support circulation and prevent stiffness. Maintaining the position of the computer monitor just below eye level helps reduce strain on the neck and eyes. Resting wrists on the edge of the desk while typing can lead to wrist strain and discomfort, so it is not an ergonomic recommendation for prolonged desk work.

4. What is the anatomic structure located in the middle of the heart that separates the right and left ventricles?

Correct answer: Septum

Rationale: The correct answer is the septum. The septum is a structure located in the middle of the heart that separates the right and left ventricles. It plays a crucial role in maintaining the separation between the two ventricles to ensure efficient blood flow. The other choices, 'Sputum' and 'Separator,' are incorrect as they do not refer to the anatomic structure in the heart that serves this specific function. 'Sputum' is a term used to describe phlegm or mucus, not an anatomical structure, and 'Separator' is a generic term that does not specifically identify the cardiac structure mentioned in the question.

5. A nurse is preparing to irrigate a client's indwelling catheter through a closed, intermittent system. Which of the following steps must the nurse take as part of this process?

Correct answer: Inject sterile solution through the injection port into the catheter

Rationale: When performing closed intermittent system catheter irrigation, the nurse should use sterile solution at room temperature with sterile technique. It is important to position the client comfortably for easy access to the catheter site and to assess the abdomen during the procedure. Clamping the catheter should be done below the level of the injection port, not above. The correct step is to inject sterile solution through the injection port into the catheter, allowing the fluid to travel up the catheter to irrigate the tubing and the bladder.

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