CDC Nursing Home Infection Prevention Practice Exam

The diagnostic workup for pneumonia typically includes various assessments to confirm the diagnosis and evaluate the patient's condition. The correct choice includes a complete blood count with differential, pulse oximetry, and chest x-ray, each serving an important role in the evaluation process.

A complete blood count with differential helps to identify the presence of an infection. It provides essential information about white blood cell counts, which can indicate an inflammatory response and help differentiate between bacterial and viral infections.

Pulse oximetry is a non-invasive method that measures the oxygen saturation in the blood. In pneumonia cases, patients often have inadequate oxygen exchange due to inflammation and fluid in the alveoli, leading to lower oxygen levels. Monitoring this parameter is crucial for assessing respiratory function and determining the need for supplemental oxygen.

A chest x-ray is fundamental in diagnosing pneumonia as it allows visualization of the lungs to identify areas of opacity that represent infection, consolidation, or fluid accumulation. It aids in differentiating pneumonia from other conditions that can mimic its presentation.

Together, these components provide a comprehensive approach to diagnosing pneumonia, guiding appropriate treatment decisions and management strategies.