digestion elimination and are the three functions of the digestive system
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Nursing Elites

NCLEX-RN

NCLEX RN Predictor Exam

1. Digestion, elimination, and ___________ are the three functions of the digestive system.

Correct answer: C

Rationale: The correct answer is 'absorption.' The three main functions of the digestive system are digestion, absorption, and elimination. Absorption refers to the process of absorbing nutrients and other substances from the digested food into the bloodstream. Choices A, B, and D are incorrect: Constriction is not a primary function of the digestive system, relaxation is not a distinct function in this context, and peristalsis is a muscular movement that aids in digestion but is not one of the three main functions of the digestive system.

2. The nurse is reviewing percussion techniques with a new graduate nurse. Which action performed by the graduate nurse while percussing requires the nurse to intervene?

Correct answer: A

Rationale: The correct answer is to percuss twice over each area, not once. This technique helps ensure a more accurate assessment. Striking with the fingertip instead of the finger pad is correct because the tip of the finger produces clearer sounds. Using the wrist to make the strikes instead of the arm is appropriate as it allows for more controlled and precise percussion. Quickly lifting the striking finger after each stroke is also correct to prevent damping off vibrations. Therefore, percussing once over each area (Choice A) is incorrect as it does not follow the standard percussion technique.

3. 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.

4. When a patient is standing in anatomical position, where are their feet?

Correct answer: B

Rationale: When a person is standing in anatomical position, their feet are side by side, and they are facing forward with the toes pointing out to the sides to open the hips. This position allows for proper alignment of the body for anatomical reference. Choice A is incorrect because the feet should not be spread open, but rather side by side. Choice C is incorrect as it does not mention the correct positioning of the feet. Choice D is incorrect as the feet should not be pointed inward, but rather facing out to the sides to open the hips.

5. 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.

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