A nurse is reviewing the arterial blood gas values for a client. The nurse should recognize that the values indicate which of the following acid-base imbalances?

The values are:

• pH: 7.56
• PaCO2: 55 mmHg
• HCO3: 33 mEq/L

Normal ranges:

• pH: 7.35-7.45
• PaCO2: 35-45 mmHg
• HCO3: 22-28 mEq/L

Choice A Reason:

Atelectasis is a common postoperative complication, especially in patients who have undergone abdominal or thoracic surgery. It occurs when the alveoli in the lungs collapse, leading to reduced or absent breath sounds in the affected areas. This condition can result from shallow breathing, pain, or immobility after surgery. The absence of breath sounds in the bases of the lungs is a key indicator of atelectasis. Preventive measures include encouraging deep breathing exercises, using incentive spirometry, and early mobilization of the patient.

Choice B Reason:

Pulmonary embolism (PE) is a serious condition where a blood clot travels to the lungs, causing a blockage in one of the pulmonary arteries. While PE can present with symptoms such as sudden shortness of breath, chest pain, and rapid heart rate, it is less likely to cause absent breath sounds in the lung bases. Instead, PE may lead to decreased oxygen levels and respiratory distress. Diagnosis typically involves imaging studies such as a CT pulmonary angiography.

Choice C Reason:

Arterial thrombus refers to a blood clot that forms in an artery, which can lead to tissue ischemia and infarction. This condition is more commonly associated with cardiovascular events such as myocardial infarction or stroke. It does not typically present with absent breath sounds in the lungs. Instead, symptoms may include pain, pallor, and loss of function in the affected area. Diagnosis and treatment focus on restoring blood flow to the affected tissues.

Choice D Reason:

Pneumonia is an infection of the lungs that can cause symptoms such as cough, fever, and difficulty breathing. While pneumonia can lead to abnormal breath sounds, such as crackles or wheezes, it is less likely to cause completely absent breath sounds in the lung bases. Pneumonia is usually diagnosed through clinical examination, chest X-rays, and sputum cultures. Treatment involves antibiotics and supportive care to manage symptoms.

Choice A reason: Referring a client because the unit is too busy is not an appropriate reason for a healthcare referral. Referrals should be based on the client’s specific needs and the expertise required to address those needs. Overcrowding or busyness of a unit should be managed through internal resources and staffing adjustments rather than referrals.

Choice B reason: When the care needed for the client is out of the healthcare provider’s scope of practice, a referral is necessary. This ensures that the client receives the appropriate level of care from a specialist or another provider with the required expertise. Referrals help in providing comprehensive and specialized care that the initial provider may not be equipped to deliver.

Choice C reason: Referring a client because they do not have insurance is not appropriate. Healthcare providers should assist clients in finding resources and support for their care needs, regardless of their insurance status. Referrals should be based on clinical needs, not financial or insurance considerations.

Choice D reason: Referring a client because they are late is not a valid reason for a healthcare referral. Timeliness is important, but it should not determine the need for a referral. Providers should address the reasons for lateness and work with the client to ensure they receive the necessary care.