A nurse is reviewing the ABGs of a client who has pneumonia. The nurse should identify which of the following findings is an indication of respiratory acidosis.

Answer: A. Diplopia.

Rationale:

A) Diplopia: Diplopia, or double vision, is a common symptom in multiple sclerosis (MS) due to demyelination of nerves in the brainstem, affecting eye movement coordination. This visual disturbance is frequently seen in MS clients and may worsen during flare-ups.

B) Masklike expression: A masklike expression is more commonly associated with Parkinson’s disease rather than multiple sclerosis. This characteristic facial appearance is due to muscle rigidity, which is not typically a manifestation of MS.

C) Twitching of the face: Facial twitching, or fasciculations, is not typically a primary symptom of multiple sclerosis. While muscle weakness and spasticity are common in MS, twitching is more commonly seen in conditions such as amyotrophic lateral sclerosis (ALS).

D) Agitation: Agitation is not a primary symptom of MS. While MS can lead to cognitive changes or mood disturbances, such as depression, severe agitation is more commonly linked with other neurological or psychiatric conditions.

Choice A rationale:

Instructing the client to take deep breaths during the test is not appropriate for a thoracentesis. This procedure involves the insertion of a needle into the pleural space to drain fluid or air, and taking deep breaths could interfere with the accuracy and safety of the procedure.

Choice B rationale:

Assisting the client to a prone position prior to the test is also incorrect. During a thoracentesis, the client is usually seated upright or in a slightly forward-leaning position to allow better access to the pleural space and improve breathing.

Choice C rationale:

Informing the client that the new onset of a cough is expected following the test is not accurate. While a cough can be a possible side effect, it is not a common or expected outcome of a thoracentesis.

Choice D rationale:

Applying pressure to the client's puncture site after the test is complete is the correct action. This helps to prevent bleeding and reduce the risk of pneumothorax (collapsed lung) by promoting clot formation at the site of the needle insertion.