A nurse in the ER is caring for a patient who had fallen at home. She reviews the blood pressure reading of 160/80 mm Hg. The client denies any history of hypertension. Which of the following actions should the nurse take first?

A. Mutually establish desired outcomes of the plan of care:

While establishing desired outcomes is an important part of the nursing process, nursing diagnoses themselves do not necessarily focus on mutually establishing these outcomes. Nursing diagnoses help identify health problems and needs, which then guide the development of outcomes during the planning phase.

B. Guide selection of nursing interventions to meet expected outcomes:

This is the correct answer. Nursing diagnoses help determine the specific needs and problems a patient is facing. Once identified, nursing interventions can be chosen to address these needs and work towards achieving expected outcomes.

C. Establish a database of information for future comparison:

Establishing a database of information is more related to the assessment phase of the nursing process. Nursing diagnoses are formulated based on the analysis of the collected data and serve to guide subsequent steps in the nursing process, particularly planning and intervention.

D. Evaluate the effectiveness of the established plan of care:

Evaluating the effectiveness of the established plan of care is part of the later stages of the nursing process. Nursing diagnoses help in planning and implementing interventions, and evaluating their effectiveness comes after these interventions have been carried out.

A. Wait 30 min and return to measure the oral temperature:

Waiting 30 minutes may not be necessary. It's more practical to take immediate steps to address potential factors affecting the reading.

B. Provide the client a sip of warm water, wait 5 min, and measure the temperature:

This can be a reasonable and practical approach to stimulate blood flow in the oral cavity and achieve a more accurate oral temperature reading.

C. Document that the nurse was unable to measure the client’s temperature:

Before documenting an inability to measure the temperature, the nurse should attempt appropriate interventions, such as warming the oral cavity or using an alternate route

D. Determine if the client has eaten or drank within the last 15 minutes:

Eating or drinking something cold shortly before taking an oral temperature can result in a lower reading. Checking for recent intake is important to ensure the accuracy of the measurement.

E. Use an alternate route (i.e., axillary, rectal) to take the client’s temperature:

If the oral temperature reading remains difficult to obtain or is not reliable, using an alternate route may be necessary. However, this depends on the client's condition, the reason for the temperature measurement, and the healthcare facility's protocols.