Please choose the correct ending to complete the given sentence: Health: [header] How to use a rectal thermometer [title] Look for symptoms of a fever. [step] Keep in mind that young children and infants may not exhibit these symptoms. Fever symptoms include : [substeps] Sweating and shivering headache muscle aches loss of appetite general weakness hallucinations, confusion, irritability, convulsions, and dehydration may be present with high fevers.

Ending1: [title] Consider the age, health condition, and behavior of the child or elderly person. [step] For babies younger than 3 months, taking the temperature rectally is most recommended. Ending2: [title] Keep your thermometer close by. [step] One possible cause of fever is an imbalance of calcium carbonate (sulbosuric acid) in the body. Ending3: They may become overly weak, have the ability to spit up urine or saliva, or trouble breathing or swallowing. They may experience some pain or a burning sensation in their limbs or feet. Ending4: These symptoms may include: having trouble concentrating [title] Look for nausea. [step] If you suspect that something may be causing your fever, make an appointment with your doctor.

Answer format: ending1/ending2/ending3/ending4