Which of the following methods should a medical assistant use to manually obtain a patient's pulse?

A. Heart rate: Pyrexia (fever) often leads to an increased heart rate as the body attempts to regulate its temperature. Therefore, heart rate may be higher than normal.
B. Temperature: Pyrexia indicates an elevated temperature, so the temperature would be outside the expected reference range due to the fever.
C. Respiratory rate: While fever can sometimes affect the respiratory rate, it is not as directly impacted as heart rate or temperature. Respiratory rate may be slightly elevated but is less consistently affected compared to heart rate and temperature.
D. Blood pressure: Fever does not typically cause significant changes in blood pressure. It is less likely to be outside the expected reference range compared to heart rate and temperature.

A. Bluish lips, cough, and difficulty breathing: These symptoms can indicate poisoning, particularly from substances that affect oxygen levels or respiratory function.
B. Itchy eyes, sinus congestion, and drainage: These symptoms are more commonly associated with allergies or upper respiratory infections rather than poisoning.
C. Increase in thirst, urination, and hunger: These symptoms are typically associated with conditions like diabetes rather than poisoning.
D. Heat intolerance, increased energy, and sweating: These symptoms are more indicative of hyperthyroidism or other endocrine disorders rather than poisoning.