NCLEX-RN
NCLEX RN Exam Prep
1. What does preload refer to?
- A. The volume of blood entering the left side of the heart
- B. The volume of blood entering the right side of the heart
- C. The pressure in the venous system that the heart must overcome to pump the blood
- D. The pressure in the arterial system that the heart must overcome to pump the blood
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. You have been asked to record the amount of food that the person has eaten during each meal. What kinds of words or numbers would you use to record this food intake?
- A. A little, a moderate amount, or all of the meal
- B. 50 cc, 100 cc, or 500 cc of the meal
- C. 25%, 50%, or 100% of the meal
- D. Either A or C
Correct answer: C
Rationale: Food intake is typically measured in terms of the percentage (%) of food that has been eaten. Using percentages allows for a more precise and standardized way of recording food consumption. For instance, you would record 25% of the vegetable if the person has eaten about a quarter of the vegetables on the plate. Choices A and B are incorrect. Choice A's terms 'a little' and 'a moderate amount' are vague and not specific enough for accurate documentation. Choice B's use of cc is more appropriate for measuring fluids, not solid foods. Choice D is also incorrect as it combines vague terms with percentages, which could lead to confusion in accurately documenting the food intake.
3. 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: C
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.
4. For the nursing diagnostic statement, Self-care deficit: feeding related to bilateral fractured wrists in casts, what is the major related factor or risk factor identified by the nurse?
- A. Discomfort
- B. Deficit
- C. Feeding
- D. Fractured wrists
Correct answer: D
Rationale: The correct answer is 'Fractured wrists.' In a nursing diagnostic statement, the related factor or risk factor is the underlying cause of the identified problem. In this case, the major factor affecting the self-care deficit in feeding is the bilateral fractured wrists in casts. The fractured wrists directly impact the client's ability to feed themselves, making it the primary related factor. Choices A, B, and C are incorrect as discomfort, deficit, and feeding are not the primary cause of the feeding problem in this scenario; rather, it is the physical limitation caused by the fractured wrists that is the focus of the nursing intervention.
5. A patient suffering from hyperglycemia would be experiencing:
- A. Low blood sugar
- B. High blood sugar
- C. Normal blood sugar
- D. None of the above
Correct answer: B
Rationale: Hyperglycemia is a condition characterized by high blood sugar levels. In this state, there is an excess of glucose in the bloodstream. Patients with hyperglycemia are often diagnosed with diabetes. The term 'hyperglycemia' specifically refers to elevated blood sugar levels. Therefore, the correct answer is 'High blood sugar.' Choices A, C, and D are incorrect because hyperglycemia indicates elevated blood sugar levels and not low or normal levels.
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