preload refers to
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Nursing Elites

NCLEX-RN

NCLEX RN Exam Prep

1. What does preload refer to?

Correct answer: B

Rationale: Preload refers to the volume of blood that enters the right side of the heart. This volume stretches the fibers in the heart before contraction. Preload is an essential factor in determining the force of ventricular contraction. Choices A, C, and D are incorrect. Choice A is incorrect because preload is specifically related to the volume of blood entering the right side of the heart. Choices C and D are incorrect as they refer to afterload, which is the pressure that the heart must overcome to pump blood out of the ventricles into the systemic or pulmonary circulation.

2. Which bloodborne pathogen is the most virulent? (Choose the BEST answer.)

Correct answer: A

Rationale: The correct answer is HCV (Hepatitis C Virus). Hepatitis C is considered the most virulent bloodborne pathogen, being 100 times more virulent than Hepatitis B. HPV (Human Papillomavirus) is a sexually transmitted infection but is not a bloodborne pathogen. HIV (Human Immunodeficiency Virus) affects the immune system but is not as virulent as Hepatitis C in terms of bloodborne transmission. HBV (Hepatitis B Virus) is less virulent compared to HCV in the context of bloodborne transmission.

3. A client is being seen for disrupted sleep patterns. The nurse encourages the client to verbalize feelings about sleep and inability to maintain adequate sleep habits. What is the rationale for this action?

Correct answer: B

Rationale: Clients experiencing disrupted sleep patterns may have underlying anxiety or fear contributing to their poor sleep habits. Encouraging clients to verbalize their feelings about sleep allows them to address any negative emotions that may be impacting their ability to sleep well. By working through these issues, clients may experience increased peace and relaxation, which can help promote better sleep. Option A is incorrect because assuming a mental illness without evidence can lead to mismanagement of the client's care. Option C is incorrect as it does not address the underlying emotional factors affecting the client's sleep patterns. Option D is incorrect as there is a specific rationale for encouraging the client to verbalize their feelings about sleep.

4. Which of the following is a disadvantage of using a dry heat application?

Correct answer: C

Rationale: The correct answer is that dry heat causes the skin to dry out more quickly. When comparing dry and moist heat applications, dry heat is less likely to cause burns and skin breakdown. However, one of the disadvantages of dry heat is that it does not penetrate deeply into the tissues and may lead to faster drying out of the skin. This can have negative effects on skin integrity and overall comfort during therapy. Choice A is incorrect because dry heat is less likely to cause burns than moist heat. Choice B is incorrect as dry heat may not penetrate deeply into tissues. Choice D is incorrect as dry heat is less likely to cause skin breakdown compared to moist heat.

5. A patient's Foley catheter has been discontinued. You will dispose of this patient equipment by doing which of the following?

Correct answer: C

Rationale: When disposing of used patient equipment, such as a Foley catheter, that has come in contact with bodily fluids, it is considered hazardous waste. The correct procedure involves wearing gloves and placing the Foley bag and tubing into a special 'hazardous waste' container. This container is marked as 'Hazardous' and is typically red to indicate the potential danger of its contents. Placing the equipment in a regular trash can, even if placed in a paper bag, is not appropriate as it does not meet the standards for disposing of hazardous waste. Therefore, options A and B are incorrect. Similarly, simply placing the equipment in a 'hazardous waste' container after it is placed in a paper bag is also incorrect as direct disposal into the designated container while wearing gloves is the proper protocol, making option D incorrect.

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