A preschooler has successfully completed the test item 'counts 5 blocks' on the Denver II test. This pass is evidence of which of the following developmental concepts?
- A. centration
- B. causality
- C. nonreversibility
- D. conservation
Correct Answer: D
Rationale: The ability of a preschooler to move five blocks to a piece of paper and state there are five blocks on the paper is evidence that the preschooler has the ability of conservation. This concept refers to the fact that the quantity of something doesn't change just because the shape, contour, and so on has changed. Five blocks are still five blocks, whether they are lying beside the paper, stacked on the paper, or moved to the paper. Centration is the ability to concentrate on one feature of a situation while neglecting all other aspects. Causality is based on the sequence of events, one event ordinarily following another. Non-reversibility refers to the inability of preschoolers to reverse their operations. They are only able to think forward, not retrace or reverse their thought processes.
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A nurse is preparing to assess a client for the presence of the Tinel sign. Which action does the nurse take to elicit this sign?
- A. Testing for the strength of each muscle joint
- B. Percussing at the location of the median nerve
- C. Checking for repetitive movements in the joints
- D. Asking the client to flex the wrist 90 degrees while holding the hands back to back
Correct Answer: B
Rationale: The Tinel sign is elicited by percussing at the location of the median nerve at the wrist. In carpal tunnel syndrome, this test can produce burning and tingling along the nerve's distribution. Choices A, C, and D are incorrect. Testing for the strength of each muscle joint and checking for repetitive movements in the joints involve different assessments unrelated to the Tinel sign. Asking the client to flex the wrist 90 degrees while holding the hands back to back is associated with the Phalen test, which is another evaluation for carpal tunnel syndrome.
A nurse assisting with data collection plans to assess tactile (vocal) fremitus. The nurse performs this by using which technique?
- A. Palpating for symmetric chest expansion
- B. Auscultating the breath sounds over the trachea and larynx
- C. Auscultating the breath sounds over the peripheral lung fields
- D. Palpating the thorax, comparing vibrations from side to side as the client repeats the word 'ninety-nine'
Correct Answer: D
Rationale: To assess tactile (vocal) fremitus, the nurse palpates the thorax and compares vibrations from side to side as the client repeats the word 'ninety-nine.' This technique helps in evaluating the intensity and symmetry of vibrations felt. Palpating for symmetric chest expansion involves assessing the expansion of the chest during breathing by placing hands on the anterolateral wall. Auscultating the breath sounds over the trachea and larynx is done to assess bronchial breath sounds, while auscultating over the peripheral lung fields is used to assess vesicular breath sounds.
A nurse monitoring a newborn infant notes that the infant's respirations are 40 breaths/min. On the basis of this finding, what is the most appropriate action for the nurse to take?
- A. Contacting the registered nurse
- B. Documenting the findings
- C. Wrapping an extra blanket around the infant
- D. Placing the infant in an oxygen tent
Correct Answer: B
Rationale: The normal respiratory rate of a newborn infant is 30 to 60 breaths/min, with an average of 40. Since the infant's respiratory rate falls within the normal range, the most appropriate action for the nurse is to document the findings. Contacting the registered nurse, placing the infant in an oxygen tent, or wrapping an extra blanket around the infant are unnecessary actions as the respiratory rate is normal. Documenting the findings is important to provide a record of the assessment and serve as a baseline for future comparisons if needed.
A pregnant client is scheduled to undergo a transabdominal ultrasound, and the nurse provides information to the client about the procedure. The nurse provides which information?
- A. The procedure typically takes 10 to 30 minutes.
- B. She may need to drink fluids before the test and may not void until the test has been completed.
- C. A probe coated with gel will be inserted into the vagina.
- D. She will be positioned on her back, with her head elevated and turned slightly to one side.
Correct Answer: B
Rationale: The correct answer is that the client may need to drink fluids before the test and may not void until the test has been completed. For a transabdominal ultrasound, the woman is positioned on her back with her head elevated and turned slightly to one side to prevent supine hypotension. A wedge or rolled blanket is placed under one hip to help her maintain this position comfortably. If a full bladder is necessary, the woman is instructed to drink several glasses of clear fluid 1 hour before the test and told that she should not void until the test has been completed. Warm mineral oil or transmission gel is spread over her abdomen, and the sonographer slowly moves a transducer over the abdomen to obtain a picture. The procedure typically takes 10 to 30 minutes, making choice A incorrect. Choice C is incorrect because a probe is not inserted into the vagina for a transabdominal ultrasound. Choice D is incorrect because the woman is positioned on her back with her head elevated and turned slightly to one side, not specifically on her back.
A client is taught about healthy dietary measures and the MyPlate food plan. How many of his grains should be whole grains according to the MyPlate food plan?
- A. One-quarter
- B. One-third
- C. One-half
- D. Two-thirds
Correct Answer: C
Rationale: The correct answer is 'One-half.' According to the MyPlate food plan, at least half of the grains consumed daily should be whole grains. This ensures a well-balanced and healthy diet. Choices A, B, and D are incorrect because they do not align with the dietary recommendation provided by the MyPlate food plan. One-quarter, one-third, and two-thirds do not represent the appropriate proportion of whole grains as advised by the plan, which emphasizes the importance of including a significant portion of whole grains in one's diet.