A nurse on a mental health unit is reviewing a client's medical record prior to administering risperidone. For which of the following findings should the nurse withhold this medication?

A. Hold a vibrating tuning fork 1 to 2 cm (0.4 to 0.8 in) from the child's ears: This describes air conduction testing used in the Rinne test, not the Weber test. In Weber’s test, the goal is to assess lateralization of sound through bone conduction, so placing the fork near the ear canal does not provide the intended diagnostic information.

B. Place a vibrating tuning fork on the top of the child's head: Weber’s test evaluates bone conduction by placing a vibrating tuning fork at the midline of the skull, on the forehead or vertex. The child is asked where the sound is heard best. In normal hearing, sound is heard equally in both ears, while lateralization suggests conductive or sensorineural hearing loss.

C. Measure the amount of time the child can hear the sound: Measuring duration of sound perception is part of the Rinne test, which compares air conduction to bone conduction. Weber’s test focuses on sound localization rather than duration, so this action does not align with the purpose of the test.

D. Obtain a tympanogram reading prior to initiating the test: Tympanometry is a separate diagnostic procedure used to assess middle ear function and eardrum mobility. It is not a prerequisite for performing a Weber test, which is a simple bedside screening using a tuning fork.

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A. Tighten the tubing connections: Tightening connections addresses low-pressure or disconnection alarms, not high-pressure alarms. A high-pressure alarm indicates increased resistance in the ventilator circuit or patient airway, so checking connections alone will not resolve the issue.

B. Suction the client's airway: A high-pressure alarm often occurs when there is increased airway resistance, which can result from mucus plugs, secretions, or bronchospasm. Suctioning the airway removes obstructions and reduces resistance, allowing the ventilator to deliver breaths at appropriate pressures, making this the priority intervention.

C. Request insertion of a tracheostomy tube: Insertion of a tracheostomy tube is not an immediate solution to a high-pressure alarm in a patient with an existing endotracheal tube. This is an invasive procedure and only indicated if prolonged intubation is necessary or if airway obstruction cannot be relieved by less invasive measures.

D. Look for a leak in the tube's cuff: A cuff leak typically triggers a low-pressure alarm because the ventilator detects loss of tidal volume. A high-pressure alarm suggests resistance or obstruction, so checking the cuff for leaks is not relevant in this scenario.