NCLEX-RN
NCLEX RN Exam Preview Answers
1. The healthcare provider is reviewing theories of illness. The germ theory, which states that microscopic organisms such as bacteria and viruses are responsible for specific disease conditions, is a basic belief of which theory of illness?
- A. Holistic
- B. Biomedical
- C. Naturalistic
- D. Magicoreligious
Correct answer: Biomedical
Rationale: The correct answer is B: Biomedical. Among the biomedical explanations for disease is the germ theory, which states that microscopic organisms such as bacteria and viruses are responsible for specific disease conditions. The naturalistic or holistic perspective holds that the forces of nature must be kept in natural balance. The magicoreligious perspective holds that supernatural forces dominate and cause illness or health. Therefore, options A, C, and D are incorrect as they do not align with the germ theory explanation provided in the question.
2. What is the MOST ACCURATE statement regarding the ESR test?
- A. The results are diagnostic for certain conditions.
- B. Abnormal results are indicative of a potentially fatal illness.
- C. Abnormal results should be followed by additional testing.
- D. Results are reported in millimeters per hour.
Correct answer: Abnormal results should be followed by additional testing.
Rationale: The erythrocyte sedimentation rate (ESR) is a non-specific screening test for inflammation in the body. It is not used as a definitive diagnostic tool for specific conditions. When ESR results are abnormal, they indicate the presence of inflammation, which can be caused by various reasons. Therefore, abnormal results should be followed by additional testing to determine the underlying cause. The ESR test measures the rate at which red blood cells settle in a vertical tube over the span of one hour, and results are reported in millimeters per hour. Choice A is incorrect because ESR results are not solely diagnostic for any specific condition. Choice B is incorrect as abnormal ESR results do not directly indicate a potentially fatal illness without further investigation. Choice D is incorrect as the results are reported in millimeters per hour, not per minute.
3. In which of the following ways can a healthcare provider promote the sense of taste for an older adult?
- A. Mixing foods together on the dinner tray
- B. Avoiding cologne, air fresheners, or room deodorizers
- C. Encouraging the client to chew food thoroughly
- D. Discouraging the use of salt or seasonings with prepared food
Correct answer: Encouraging the client to chew food thoroughly
Rationale: As individuals age, their sense of taste may diminish, impacting the enjoyment of eating. One effective way for a healthcare provider to promote the sense of taste for an older adult is by encouraging them to chew food thoroughly. Thorough chewing increases the contact of food with the taste buds, enhancing the chances of experiencing the flavors. Mixing foods together on the dinner tray may not necessarily enhance taste perception. Avoiding strong scents like cologne, air fresheners, or room deodorizers is more related to olfactory senses rather than taste. Discouraging the use of salt or seasonings can further diminish the taste experience for older adults who may already have reduced taste sensitivity.
4. Which of the following puts the layers of skin in the correct order from right to left?
- A. Dermis, epidermis, hypodermis
- B. Hypodermis, epidermis, dermis
- C. Epidermis, dermis, hypodermis
- D. None of the above
Correct answer: Epidermis, dermis, hypodermis
Rationale: The correct order of the layers of skin from outermost to innermost is the epidermis, dermis, and then the hypodermis. The epidermis is the outermost layer of the skin, followed by the dermis, which is the middle layer containing connective tissue, hair follicles, and sweat glands. The hypodermis, also known as the subcutaneous tissue, lies beneath the dermis and consists of fat and connective tissue. Choice A is incorrect as it lists the layers in the reverse order. Choice B is incorrect as it reverses the order of the layers. Choice D is incorrect as there is a correct answer among the choices.
5. The body system that functions to maintain fluid balance, support immunity, and contains the spleen is the:
- A. Lymphatic System
- B. Digestive System
- C. Urinary System
- D. Respiratory System
Correct answer: Lymphatic System
Rationale: The Lymphatic System is responsible for maintaining fluid balance and supporting immunity. It contains organs like the spleen, tonsils, thymus, lymph nodes, and lymph vessels. The spleen, a part of the lymphatic system, plays a crucial role in filtering blood and storing blood cells. The Digestive System is primarily involved in the breakdown and absorption of nutrients, not fluid balance or immunity. The Urinary System is responsible for filtering waste products from the blood and regulating fluid balance, but it does not support immunity or contain the spleen. The Respiratory System is focused on gas exchange and oxygenating the blood, not fluid balance or immunity.
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