A client is suffering from osteoarthritis in the knees and the nurse is providing care. The nurse is assessing the client's pain level and pain tolerance. Based on the nurse's understanding of pain, the nurse knows that a client's pain tolerance is most likely relieved by which of the following?

Respiratory acidosis is a primary acid-base imbalance that occurs when there is an excess of carbon dioxide (CO2) in the body due to impaired ventilation or inadequate removal of CO2 from the lungs. In this case, Colleen's depressed ventilation, indicated by shallow and slow respirations, can lead to inadequate elimination of CO2 from her body. The excessive CO2 levels can result in an accumulation of carbonic acid (H2CO3) in the blood, leading to an increase in acidity and a decrease in pH.

The profuse bleeding from both ears indicates a potential head injury, which can lead to decreased neurological function and impaired control over the respiratory center in the brain. This can further contribute to depressed ventilation and the development of respiratory acidosis. Metabolic acidosis, characterized by a decrease in bicarbonate (HCO3-) levels or an increase in non-carbonic acids in the blood, is not the primary acid-base imbalance in this case since the scenario does not provide information indicating a primary metabolic disorder. Respiratory alkalosis, characterized by decreased levels of CO2 in the blood, leading to increased pH and alkalinity, is not the primary acid-base imbalance in this case. The depressed ventilation and associated increase in CO2 levels indicate the opposite, respiratory acidosis. Metabolic alkalosis, characterized by an increase in bicarbonate levels or a decrease in non-carbonic acids, is not the primary acid-base imbalance in this case as the scenario does not provide information indicating a primary metabolic disorder.

Assisting the patient to get out of bed is a task that can be safely delegated to UAP, as long as the patient's mobility and transfer status allow for assistance without the need for specialized nursing skills. UAPs are trained to provide basic patient care, including assisting with activities of daily living, under the supervision and direction of licensed healthcare professionals.

Teaching the patient to purse lip breath requires knowledge and understanding of the technique, as well as the ability to assess the patient's response and provide feedback. This is best done by a licensed healthcare professional, such as a nurse or respiratory therapist. Auscultating breath sounds every 4 hours requires the ability to correctly use a stethoscope and interpret the findings. This task falls within the scope of practice of a nurse or respiratory therapist who has received appropriate training.

Planning patient activities to minimize exertion requires knowledge of the patient's condition, limitations, and goals. It involves assessment, evaluation, and coordination of care, which are typically performed by licensed healthcare professionals.