A nurse is caring for a client who develops the rhythm below. The client is unresponsive, pulseless, and apneic. Which of the following actions should the nurse expect to do first?

A) Prepare the client for mechanical ventilation:
A myasthenic crisis is a medical emergency characterized by severe weakness of the respiratory muscles, leading to respiratory failure. This can result from insufficient levels of acetylcholine due to insufficient medication (e.g., pyridostigmine) or from an infection. In such cases, airway support is the priority. The nurse should first prepare the client for potential mechanical ventilation to ensure they can breathe properly and to prevent respiratory arrest.

B) Instruct the client to perform pursed-lip breathing:
While pursed-lip breathing is a useful technique to help with shortness of breath and improve ventilation in certain respiratory conditions (like COPD), it is not the first action in managing a myasthenic crisis. The immediate priority is to ensure the client can breathe and maintain oxygenation, which may require mechanical ventilation if the respiratory muscles are too weak to support breathing effectively.

C) Prepare to administer IVIG:
IV immunoglobulin (IVIG) can be used in the treatment of myasthenic crisis by suppressing the immune response and increasing acetylcholine receptor activity. However, IVIG is not typically the first intervention. Respiratory support and stabilization should take precedence, especially if there is significant respiratory distress.

D) Administration of an immunosuppressant:
Immunosuppressive therapy, such as corticosteroids or azathioprine, may be used to manage myasthenia gravis over the long term, but it is not an acute intervention for a myasthenic crisis. The immediate priority in a crisis situation is to manage respiratory distress and ensure airway protection.

A) Take the medication with meals:
Inhaled beclomethasone is a corticosteroid, and it is generally not necessary to take it with meals. Oral corticosteroids are sometimes taken with meals to minimize gastric irritation, but this does not apply to inhaled corticosteroids like beclomethasone. The primary concern with inhaled corticosteroids is not related to meal timing but to oral hygiene to prevent side effects like oral thrush.

B) Limit caffeine intake:
There is no direct contraindication or requirement to limit caffeine intake when taking inhaled beclomethasone. While caffeine can have mild bronchodilatory effects, it does not interfere with the action of beclomethasone or exacerbate asthma symptoms. This is not a priority teaching point for the patient.

C) Rinse the mouth after administration:
One of the most important teaching points when using inhaled beclomethasone is to rinse the mouth after each use. This helps to prevent oral thrush (a fungal infection caused by Candida), which is a common side effect of inhaled corticosteroids. Rinsing the mouth with water after administration helps to remove any leftover medication and reduce the risk of infection, making this the most important instruction.

D) Check the pulse before and after medication administration:
While checking the pulse is important for some medications, such as bronchodilators like albuterol, it is not necessary for inhaled beclomethasone. Beclomethasone is a corticosteroid that primarily works by reducing inflammation in the airways, and it does not have a significant impact on heart rate. Therefore, it is not required to monitor pulse before and after its use.