A school nurse is using the Weber's test to check a child's hearing acuity.
Which of the following actions should the nurse take?
Measure the amount of time the child can hear the sound.
Obtain a tympanogram reading prior to initiating the test.
Place a vibrating tuning fork on the top of the child's head.
Hold a vibrating tuning fork 1 to 2 cm (0.4 to 0.8 in) from the child's ears.
The Correct Answer is C
Choice A rationale:
Measuring the amount of time the child can hear the sound is not the correct action when performing Weber's test. Weber's test is used to assess hearing acuity and lateralization. In this test, a vibrating tuning fork is placed in the middle of the patient's forehead, and the patient is asked if the sound is heard equally in both ears or if it is louder in one ear. This helps identify whether there is a conductive or sensorineural hearing loss. The duration of hearing the sound is not relevant to this test.
Choice B rationale:
Obtaining a tympanogram reading is not necessary before initiating Weber's test. Tympanometry assesses the movement of the eardrum in response to changes in air pressure and can help diagnose conditions like middle ear effusion or eustachian tube dysfunction. However, Weber's test focuses on lateralization of sound and does not require tympanogram readings.
Choice C rationale:
Placing a vibrating tuning fork on the top of the child's head is the correct action for performing Weber's test. By doing so, the nurse can assess whether the sound is perceived equally in both ears or if it is lateralized to one ear. If the sound is lateralized, it can provide valuable information about the type of hearing loss the child may have, whether it's conductive or sensorineural.
Choice D rationale:
Holding a vibrating tuning fork 1 to 2 cm (0.4 to 0.8 in) from the child's ears is not the correct technique for Weber's test. Placing the tuning fork directly on the patient's forehead is essential for accurate assessment. Holding it close to the ears can lead to misinterpretation of the test results.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
- A. Incorrect. Evaluating dietary intake requires nursing judgment and knowledge of nutrition and eating disorders. This task should not be delegated to an AP.
- B. Incorrect. Measuring vital signs of a postoperative client requires nursing assessment and monitoring for complications. This task should not be delegated to an AP.
- C. Correct. Arranging the lunch tray for a client who has a hip fracture is a routine task that does not require nursing skills or judgment. This task can be delegated to an AP.
- D. Incorrect. Assessing I&O for a client who is receiving dialysis requires nursing knowledge of fluid and electrolyte balance and renal function. This task should not be delegated to an AP.
Correct Answer is D
Explanation
pH 7.31
Rationale:
A - This is incorrect because weight gain is not expected in clients who have COPD, as they often have difficulty eating and digesting food due to dyspnea and fatigue.
B - This is incorrect because a decrease in anteroposterior diameter of the chest is not typical of COPD, as the condition causes hyperinflation and air trapping in the lungs, leading to an increase in chest size and a barrel-shaped appearance.
C - This is incorrect because HCO3 24 mEq/L is within the normal range for blood bicarbonate levels, which are 22 to 26 mEq/L. Clients who have COPD often have chronic respiratory acidosis, which stimulates the kidneys to retain bicarbonate and increase its levels in the blood to compensate for the low pH.
D - This is correct because pH 7.31 indicates acidosis, which is common in clients who have COPD due to impaired gas exchange and accumulation of carbon dioxide in the blood.
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