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 A
Explanation
- A is correct because it is a direct and respectful way of addressing the issue with the nurse who is violating the unit policies. It also opens up a dialogue for possible solutions and feedback.
- B is incorrect because it is a threatening and punitive statement that does not address the root cause of the problem or offer any constructive feedback.
- C is incorrect because it is a passive-aggressive and guilt-inducing statement that does not clearly communicate the expectations or consequences of violating the unit policies.
- D is incorrect because it is an irrelevant and deflecting statement that does not address the issue of taking an extended amount of time for break.
Correct Answer is ["F","H","K","M"]
Explanation
- A: Obtain the latex free cart is incorrect. There is no evidence that the client has a latex allergy or that latex exposure triggered the malignant hyperthermia reaction.
- B: Paralytic ileus is incorrect. Paralytic ileus is not the primary condition that the client is experiencing, but a possible secondary complication of malignant hyperthermia.
- C: Nausea and vomiting is incorrect. Nausea and vomiting are common postoperative symptoms that may or may not be related to malignant hyperthermia.
- D: Hypercapnia is incorrect. Hypercapnia is a condition of elevated carbon dioxide levels in the blood that can result from hypoventilation or respiratory failure. The client's respiratory rate is high, not low, indicating hyperventilation rather than hypoventilation.
- E: Nasogastric (NG) tube is incorrect. An NG tube may be indicated for paralytic ileus or bowel obstruction, but not for malignant hyperthermia.
- F: Malignant hyperthermia is correct. The client's vital signs indicate a possible malignant hypertermia reaction, which is a rare but life-threatening complication of general anesthesia that causes a rapid rise in body temperature, muscle rigidity, tachycardia, tachypnea, and hypoxia.
- G: Administer ondansetron is incorrect. Ondansetron is an antiemetic medication that can help with nausea and vomiting, but it does not address the underlying cause of malignant hyperthermia.
- H: Administer dantrolene is correct. Dantrolene is the antidote for malignant hyperthermia and should be given as soon as possible to stop the metabolic crisis and lower the body temperature.
- I: Latex allergy is incorrect. Latex allergy is a hypersensitivity reaction to latex products that can cause urticaria, angioedema, bronchospasm, or anaphylaxis. There is no evidence that the client has a latex allergy or that latex exposure triggered the malignant hyperthermia reaction.
- J: Urticaria is incorrect. Urticaria is a skin rash that can be caused by allergic reactions, infections, or other factors. There is no evidence that the client has urticaria or that it is related to malignant hyperthermia.
- K: Muscle rigidity is correct. Muscle rigidity is one of the signs of malignant hyperthermia and should be monitored closely by the nurse.
- L: Bowel sounds is correct. Bowel sounds should be assessed regularly by the nurse to detect any signs of paralytic ileus, which is a potential complication of malignant hyperthermia that causes intestinal obstruction and abdominal distension.
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