The nurse is analyzing a client's arterial blood gas (ABG) values with the following results: pH 7.44, PaCO2 30 mmHg, Pa02 90 mmHg, and HCO3 18mEg/L. Which acid base Imbalance should the nurse associate with these results?

Table 9.9 Normal Arterial Blood Gas Values

ABG Value.                                                             Normal Value

pH                                                                             7.35-7.45

PaCO2                                                                                                            35-45 mmHg

HCO3-                                                                         22-26mEq/L

Base excess                                                               -2 to +2

PaO2                                                                            80-95 mmHg

SaO2                                                                            >95%

A) Monitor the client's pulse oximetry every shift:
Monitoring pulse oximetry every shift is not sufficient when caring for a client on a ventilator. Pulse oximetry provides valuable information about oxygen saturation, but it should be checked more frequently, especially in a critically ill patient on a ventilator. Continuous monitoring may be required to ensure that oxygenation is maintained at optimal levels. The nurse should assess the pulse oximetry regularly and take immediate action if there is a significant change in the client’s oxygen saturation.

B) Assess the client's respiratory status at least every 1-2 hours:
It is essential to assess the client's respiratory status frequently when they are on a ventilator. Respiratory assessments should be performed at least every 1-2 hours to monitor for complications such as ventilator-associated pneumonia, changes in oxygenation, or the need for adjustments to the ventilator settings. Regular assessment is critical to detect early signs of deterioration and respond promptly.

C) Ensure that a manual resuscitation bag is at the bedside:
Having a manual resuscitation bag (e.g., Ambu bag) at the bedside is a critical intervention for clients on a ventilator. In case of ventilator malfunction, extubation, or respiratory distress, the nurse must have immediate access to a resuscitation bag to manually ventilate the patient. This is a lifesaving piece of equipment that should always be present and ready for use.

D) Check the ventilator settings every shift:
It is essential to check ventilator settings every shift to ensure that the ventilator is functioning correctly and providing the appropriate levels of support for the patient. This includes checking settings such as tidal volume, respiratory rate, pressure, and FiO2 (fraction of inspired oxygen) to ensure they are appropriate for the client's condition. Regular checks can help detect problems such as changes in settings or malfunctioning equipment.

E) Collaborate frequently with the respiratory therapist:
Frequent collaboration with the respiratory therapist is crucial when managing a client on a ventilator. Respiratory therapists are experts in ventilator management and can provide valuable insight into adjusting settings, interpreting ABGs, troubleshooting equipment issues, and optimizing respiratory care. Collaborative care helps ensure that the client is receiving the most appropriate interventions and adjustments for their respiratory status.

A) Encouraging the client to cough and deep breathe every two hours:
Encouraging the client to cough and deep breathe is an important nursing intervention for clients with a chest tube. This helps promote lung expansion, prevent atelectasis, and improve respiratory function. It also helps to clear secretions that may accumulate in the lungs. Therefore, this practice is appropriate and beneficial for the client.

B) Stripping the chest tube to dislodge any blood clots:
Stripping the chest tube, which involves forcibly pulling or pinching the tubing to remove clots, is an unsafe and outdated practice. It can create a dangerous increase in intrathoracic pressure, which may lead to tension pneumothorax, as well as injury to the lung tissue. Instead, the nurse should focus on gently milking the chest tube if necessary (if prescribed by the healthcare provider) or ensure that any blood clots are properly managed by the physician. Stripping or clamping the tube without proper indications is contraindicated.

C) Assessing the client's respiratory status frequently:
Frequent assessment of the client's respiratory status is crucial when managing a patient with a chest tube. The nurse should monitor for signs of respiratory distress, changes in breath sounds, oxygen saturation, and any signs of complications such as pneumothorax or hemothorax. Regular respiratory assessment helps in early detection of issues and provides the data necessary to manage the client's care effectively.

D) Monitoring skin for subcutaneous emphysema:
Monitoring for subcutaneous emphysema is a vital part of nursing care for a client with a chest tube. Subcutaneous emphysema occurs when air escapes from the pleural space into the tissues under the skin, and can be a sign of a pneumothorax or a complication related to the chest tube. It is important to detect this early so appropriate intervention can be made to prevent further complications.