The nurse is caring for a 3-year-old weighing 14 kg who has been ordered Amoxicillin 175 mg PO q 8 hrs for a recurrent ear infection. The safe dose is 20-40 mg/kg/day. Is this a safe dose?

Choice A reason: Calling the physician is not the first action because it would delay the immediate intervention of oxygen administration, which is critical for a patient with hypoxia. The physician should be notified after initiating oxygen therapy and assessing the patient's condition.

Choice B reason: Placing the patient on 10 L/min oxygen per nasal cannula is not the first action because it is too high of a flow rate for a two-year-old patient, and it could cause oxygen toxicity or barotrauma. The appropriate oxygen delivery device and flow rate should be determined based on the patient's age, weight, and clinical status.

Choice C reason: Assessing the patient is not the first action because it would also delay the immediate intervention of oxygen administration. The patient's pulse oximetry reading indicates severe hypoxia, which requires prompt treatment to prevent organ damage or death. The patient should be assessed after initiating oxygen therapy and monitoring vital signs.

Choice D reason: Administering oxygen and monitoring vital signs while calling the physician is the correct answer because it provides the most effective and timely response to the patient's hypoxia. Oxygen administration improves the patient's oxygen saturation and tissue perfusion, while vital sign monitoring helps to evaluate the patient's response to therapy and identify any complications. Calling the physician informs them of the situation and allows them to order further interventions or tests as needed.

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Choice A reason: The child has a high fever is not a correct answer because fever is not a specific sign of croup. Fever can occur in many respiratory infections, such as bronchiolitis, pneumonia, or tonsillitis.

Choice B reason: Wheezing is heard audibly is not a correct answer because wheezing is not a characteristic feature of croup. Wheezing is more common in asthma or bronchiolitis, which affect the lower airways.

Choice C reason: It is bacterial in nature is not a correct answer because croup is usually caused by a virus, such as parainfluenza, adenovirus, or respiratory syncytial virus. Bacterial croup is rare and more severe, requiring hospitalization and antibiotics.

Choice D reason: It has a harsh, barking cough is the correct answer because it is the most distinctive symptom of croup. The cough is caused by the inflammation and narrowing of the larynx and trachea, which produce a sound similar to a seal's bark.