A client has just been informed of a positive HIV test. The client is distraught and does not know what to do. What is the best intervention by the nurse?

Choice A rationale:
Metabolic alkalosis is a condition characterized by an increase in the pH of the blood due to an excess of bicarbonate (HCO3-) in the body. It is not typically caused by severe diarrhea. In fact, diarrhea can often lead to a loss of bicarbonate, which can contribute to metabolic acidosis.
Causes of metabolic alkalosis include: excessive vomiting, use of diuretics, and excessive intake of alkali such as antacids. Clinical manifestations of metabolic alkalosis include: muscle twitching, paresthesias, seizures, confusion, and lethargy.
Choice B rationale:
Respiratory alkalosis is a condition characterized by a decrease in the partial pressure of carbon dioxide (PaCO2) in the blood, leading to an increase in blood pH. It is caused by hyperventilation, which removes excess CO2 from the body. Severe diarrhea does not typically cause hyperventilation.
Causes of respiratory alkalosis include: anxiety, hyperventilation syndrome, high altitude sickness, and pulmonary embolism. Clinical manifestations of respiratory alkalosis include: lightheadedness, dizziness, paresthesias, palpitations, and tetany.
Choice C rationale:
Respiratory acidosis is a condition characterized by an increase in the partial pressure of carbon dioxide (PaCO2) in the blood, leading to a decrease in blood pH. It is caused by hypoventilation, which prevents the body from removing enough CO2. Severe diarrhea does not typically cause hypoventilation.
Causes of respiratory acidosis include: chronic obstructive pulmonary disease (COPD), pneumonia, asthma, and neuromuscular disorders.
Clinical manifestations of respiratory acidosis include: headache, confusion, somnolence, and coma.
Choice D rationale:
Metabolic acidosis is a condition characterized by a decrease in the pH of the blood due to an excess of acid in the body or a loss of bicarbonate. Severe diarrhea can lead to metabolic acidosis through several mechanisms:
Loss of bicarbonate in the stool: Diarrhea often contains a significant amount of bicarbonate, which can be lost from the body in large amounts during severe diarrheal episodes. This loss of bicarbonate can lead to a decrease in the blood's pH, resulting in metabolic acidosis.
Dehydration: Severe diarrhea can also lead to dehydration, which can concentrate acids in the blood and contribute to metabolic acidosis.
Lactic acidosis: In some cases, severe diarrhea can also cause lactic acidosis, a type of metabolic acidosis that occurs when there is a buildup of lactic acid in the body. This can happen due to impaired circulation or tissue hypoxia, which can occur as a complication of severe diarrhea.

Choice A rationale:
It is incorrect to state that the client will not be able to bathe with a central vascular access device.
While certain precautions are necessary to keep the device dry and clean during bathing, bathing is still possible and important for maintaining hygiene.
The nurse should provide specific instructions on how to protect the device during bathing, such as using a waterproof cover or avoiding direct water contact.
Choice B rationale:
It is inaccurate to claim that there is no risk of infection associated with a central vascular access device, even when sterile technique is used during insertion.
Infection is a serious potential complication, and it's crucial to emphasize ongoing infection prevention measures to the client.
The nurse should educate the client about signs and symptoms of infection to watch for and the importance of prompt reporting to healthcare providers.
Choice C rationale:
It is not always necessary to wear a sling on the arm with the central vascular access device.
The need for a sling may depend on the type of device, the client's condition, and the healthcare provider's recommendations.
If a sling is indicated, the nurse should provide instructions on proper use and care to maintain comfort and prevent complications.
Choice D rationale:
This is the correct statement to include in the client's teaching.
Thorough cleaning of the connections prior to accessing the device is essential for preventing infection.
The client should be empowered to advocate for themselves and ensure that all providers follow proper infection control procedures.