Which nursing diagnosis is most appropriate for a patient with xerostomia?

Choice A reason: This is an incorrect choice because the axillary method is not the most accurate measurement of the core temperature. The axillary method involves placing a thermometer under the patient's armpit and measuring the temperature of the skin surface. This method can be affected by factors such as sweating, clothing, and ambient temperature. The axillary method can underestimate the core temperature by 0.5°C to 1.5°C¹.

Choice B reason: This is an incorrect choice because the oral method is not the most accurate measurement of the core temperature. The oral method involves placing a thermometer in the patient's mouth and measuring the temperature of the sublingual pocket. This method can be affected by factors such as eating, drinking, smoking, and mouth breathing. The oral method can underestimate the core temperature by 0.3°C to 0.8°C¹.

Choice C reason: This is the correct choice because the rectal method is the most accurate measurement of the core temperature. The rectal method involves inserting a thermometer into the patient's rectum and measuring the temperature of the rectal mucosa. This method reflects the temperature of the blood flowing through the core of the body. The rectal method is considered the gold standard for measuring the core temperature¹.

Choice D reason: This is an incorrect choice because the forehead method is not the most accurate measurement of the core temperature. The forehead method involves placing a thermometer on the patient's forehead and measuring the temperature of the temporal artery. This method can be affected by factors such as sweating, hair, and ambient temperature. The forehead method can overestimate or underestimate the core temperature by 0.5°C to 1°C¹.

Choice A reason: This is incorrect. Documenting the finding in the patient’s medical record is an important step, but not the most appropriate first action of the nurse. The nurse should first confirm the irregularity by counting the apical pulse.

Choice B reason: This is incorrect. Assessing the brachial pulse for a pulse deficit is a useful technique, but not the most appropriate first action of the nurse. A pulse deficit is the difference between the apical and radial pulse rates. The nurse should first count the apical pulse before comparing it with the radial pulse.

Choice C reason: This is incorrect. Notifying the health care provider immediately is a necessary step, but not the most appropriate first action of the nurse. The nurse should first gather more information by counting the apical pulse and determining the type and severity of the irregularity.

Choice D reason: This is correct. Counting the patient’s apical pulse for one full minute is the most appropriate first action of the nurse. The apical pulse is the most accurate way to measure the heart rate and rhythm. The nurse should listen to the heart sounds at the apex of the heart, which is located at the fifth intercostal space, left midclavicular line. The nurse should count the number of beats and note any irregularities, such as skipped, extra, or uneven beats.