Final answer:
Abnormal vital signs in a 3-year-old, such as a heart rate of 220 bpm, blood pressure of 55/30 mm Hg, and oxygen saturation at 90%, indicate medical concerns like tachycardia, hypotension, and hypoxemia. These require immediate medical evaluation.
Step-by-step explanation:
When assessing the normal findings for a 3-year-old patient, it's essential to consider established reference values for vital signs. A normal heart rate (HR) for a toddler would range between 70 and 110 beats per minute (bpm). The provided HR of 220 bpm is significantly higher than normal, indicating a condition known as tachycardia, which demands further investigation. Normal respiration rates for a 3-year-old should be between 20 and 30 breaths per minute, so a rate of 24 is within normal limits.
Blood pressure (BP) in a healthy 3-year-old would typically range from 90/60 to 110/70 mm Hg, thus a BP of 55/30 mm Hg is considered hypotension and is a concern. Lastly, a pulse oximetry reading of 90% is suggestive of hypoxemia, as normal oxygen saturation levels should be between 95-100%. These abnormal findings could be indicative of an underlying medical condition and warrant immediate medical attention.