a urine pregnancy test

NCLEX-RN

NCLEX RN Predictor Exam

1. A urine pregnancy test:

A. May be negative even if a blood pregnancy test is positive.
B. Is positive only during the first trimester of pregnancy.
C. Will be negative if the amount of LH isn't enough to meet or exceed the sensitivity of the testing device.
D. All of the above.

Correct answer: A

Rationale: A urine pregnancy test detects HCG in a pregnant woman's urine. Blood levels of HCG are usually higher and register earlier than HCG levels in the urine. Choice A is correct because urine pregnancy tests may be negative even if a blood pregnancy test is positive due to the differences in HCG levels in blood and urine. Choice B is incorrect because a urine pregnancy test can be positive throughout pregnancy, not just in the first trimester. Choice C is incorrect because LH (luteinizing hormone) is not the hormone detected in a pregnancy test; it is HCG (human chorionic gonadotropin). Choice D is incorrect because not all the statements provided are true.

2. When percussing over the abdomen of an obese patient, the nurse is unable to identify any changes in sound. What would the nurse do next?

A. Ask the patient to take deep breaths to relax the abdominal musculature.
B. Consider this finding as normal and proceed with the abdominal assessment.
C. Increase the amount of strength used when attempting to percuss over the abdomen.
D. Decrease the amount of strength used when attempting to percuss over the abdomen.

Correct answer: C

Rationale: When percussing an obese patient's abdomen, the thickness of their body wall can affect the sound produced. A stronger percussion stroke is needed for obese or very muscular patients. The force of the blow determines the loudness of the note. Asking the patient to take deep breaths, considering the finding as normal, or decreasing the strength used are not appropriate actions in this scenario.

3. A client is being assisted to lie in the Sims' position. In what position does the nurse arrange the client?

A. The client lies on his side with the upper leg flexed
B. The client lies on his back with his head lower than his feet
C. The client lies on his abdomen with a pillow supporting his head
D. The client is sitting up at a 90-degree angle

Correct answer: A

Rationale: The Sims' position is a side-lying position used for examinations or comfort. In the Sims' position, the client lies on their side with the upper leg flexed. The abdomen is slightly downward, and the lower arm is positioned behind the body. A pillow can be used to support the leg. Choice B is incorrect as it describes a position with the client lying on their back with the head lower than the feet. Choice C is incorrect as it describes a prone position, not the Sims' position. Choice D is incorrect as it describes a sitting position, not the Sims' position.

4. A nurse is preparing to insert a small-bore nasogastric feeding tube for a client's enteral feedings. In which method does the nurse measure the correct length of the tube?

A. From the tip of the nose to the xiphoid process
B. From the tip of the nose to the earlobe to the xiphoid process
C. From the earlobe to the xiphoid process
D. From the tip of the nose to the earlobe to the umbilicus

Correct answer: B

Rationale: When preparing to insert a nasogastric tube, the nurse must measure the correct length to ensure that the end of the tube will be in the correct position in the stomach. The accurate method to measure the length is from the tip of the nose to the earlobe to the xiphoid process. This length ensures that the end of the tube reaches the stomach, avoiding placement in the small intestine or esophagus. Choice A is incorrect as it does not include the earlobe, which is essential for accurate measurement. Choice C is incorrect because measuring from the earlobe alone does not provide the correct length for positioning in the stomach. Choice D is incorrect as it includes the umbilicus, which is not the appropriate landmark for measuring the length of a nasogastric tube intended for stomach placement.

5. In which situation would the nurse use bimanual palpation technique?

A. Palpating the thorax of an infant
B. Palpating the kidneys and uterus
C. Assessing pulsations and vibrations
D. Assessing the presence of tenderness and pain

Correct answer: B

Rationale: Bimanual palpation involves using both hands to envelop or capture specific body parts or organs like the kidneys, uterus, or adnexa. This technique is particularly useful for assessing the size, shape, consistency, and mobility of deep organs like the kidneys and uterus. Palpating the thorax of an infant (Choice A) is usually done with a different technique like gentle, single-handed palpation. Assessing pulsations and vibrations (Choice C) and assessing tenderness and pain (Choice D) typically do not require the use of bimanual palpation, making Choices A, C, and D incorrect.