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: D

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

Correct answer: A

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.

3. During an examination of a patient's abdomen, the nurse notes that the abdomen is rounded and firm to the touch. During percussion, the nurse notes a drum-like quality of the sounds across the quadrants. How would the nurse interpret this type of sound?

Correct answer: B

Rationale: A musical or drum-like sound (tympany) is heard when percussion occurs over an air-filled viscus, such as the stomach or intestines. This indicates the presence of air-filled areas. Constipation, choice A, does not produce specific percussion sounds and is related to bowel movements rather than the sound produced during percussion. The presence of a tumor, choice C, would not typically produce a drum-like sound but might result in dullness or decreased resonance. Dense organs, choice D, would produce a dull thud sound rather than a drum-like tympanic sound.

4. What does an individual who believes in the magicoreligious theory of illness and disease think is the cause of illness?

Correct answer: B

Rationale: Individuals who adhere to the magicoreligious theory of illness and disease attribute the cause of illness to supernatural forces. In this perspective, the world is perceived as governed by supernatural forces that influence the well-being of individuals. The belief is that these forces can bring about both good and evil outcomes. Choices A, C, and D are incorrect. Germs and viruses are associated with the biomedical theory of illness. Eating imbalanced hot or cold foods is linked to the yin/yang naturalist theory. Imbalance within one's spiritual nature is not a recognized cause of illness in any of the established theories of illness.

5. What technique would the nurse use to accurately assess a rectal temperature in an adult?

Correct answer: A

Rationale: To accurately assess a rectal temperature in an adult, a nurse should use a lubricated rectal thermometer with a short, blunt tip. The thermometer is inserted only 2 to 3 cm (1 inch) into the rectum and left in place for 2 minutes. Choice B is incorrect as inserting the thermometer 2 to 3 inches would be too deep and inaccurate. Choice C is incorrect as leaving the thermometer in place for up to 8 minutes is unnecessary and can cause discomfort. Choice D is incorrect as smoking a cigarette does not impact rectal temperatures.

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