A nurse is assisting with the care of a preschooler who is postoperative following tetralogy of Fallot correction. Which of the following manifestations indicates the child is possibly experiencing decreased cardiac output?

Choice A rationale:
Iron 100 mcg/dL The normal range for serum iron levels can vary based on age and gender, but typically, a range of 50 to 150 mcg/dL is considered normal. The provided value of 100 mcg/dL falls within this range and is not a cause for concern. Elevated iron levels can be indicative of hemochromatosis or other disorders, but this value is not concerning.
Choice B rationale:
Hemoglobin 8 g/dL Hemoglobin levels can vary by age and gender, but in general, a hemoglobin level of 8 g/dL is low and suggestive of anemia, a condition characterized by a reduced ability of the blood to carry oxygen. Anemia can lead to fatigue, weakness, and other symptoms, and the nurse should report this finding to the healthcare provider for further evaluation and management.
Choice C rationale:
Sodium 140 mEq/L The normal range for serum sodium levels is typically around 135 to 145 mEq/L. The provided value of 140 mEq/L falls within this normal range and is not a cause for concern. Deviations from this range can indicate various conditions, including dehydration or overhydration, but this value is within an acceptable range.
Choice D rationale:
Calcium 9 mg/dL The normal range for serum calcium levels can vary, but generally, a range of 8.5 to 10.5 mg/dL is considered normal. The provided value of 9 mg/dL falls within this range and is not significantly abnormal. Abnormal calcium levels can be indicative of various conditions, including thyroid disorders or kidney problems, but this value is not concerning.

Choice A rationale:
Tinnitus is the perception of noise or ringing in the ears. It can be caused by various factors, including exposure to loud noises, ear infections, and certain medications. However, tinnitus is not a commonly reported adverse effect of albuterol, which is a bronchodilator used to treat conditions like asthma and other respiratory disorders.
Choice B rationale:
Constipation is not a commonly reported adverse effect of albuterol. Albuterol primarily acts on the smooth muscles of the airways to relax and dilate them, improving airflow. Constipation is more likely related to issues with the gastrointestinal system or certain medications, but it is not a direct consequence of albuterol use.
Choice C rationale:
Hypoglycemia, or low blood sugar, is not a known adverse effect of albuterol. Albuterol primarily affects the respiratory system and does not typically impact blood glucose levels. Hypoglycemia is more commonly associated with diabetes medications like insulin or certain oral hypoglycemic agents.
Choice D rationale:
Headache is a potential adverse effect of albuterol. While not everyone will experience a headache when taking albuterol, it can occur as a side effect in some individuals. Albuterol can stimulate the sympathetic nervous system, leading to effects such as increased heart rate and potential vasodilation, which could contribute to the development of a headache in some cases. It's important for the parents of a child taking albuterol to be aware of potential side effects and report them to the healthcare provider if they occur.