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:
Correct Choice. Current pregnancy is a contraindication to administering the measles, mumps, and rubella (MMR) vaccine. The MMR vaccine contains live attenuated viruses, and it is generally contraindicated during pregnancy due to the potential risk to the developing fetus. Pregnant individuals should wait until after giving birth to receive the MMR vaccine.
Choice B rationale:
Mild ear infection is not a contraindication to administering the MMR vaccine. Mild illnesses, such as mild upper respiratory infections or low-grade fevers, are not typically considered contraindications for vaccination. In fact, immunization might be recommended in these cases to ensure protection against preventable diseases.
Choice C rationale:
A family history of seizures is not a contraindication to administering the MMR vaccine. Seizures are not known to be associated with the MMR vaccine. Therefore, a family history of seizures would not preclude an individual from receiving the vaccine.
Choice D rationale:
Severe peanut allergy is not a contraindication to administering the MMR vaccine. Allergies, including severe peanut allergies, are not considered contraindications for the MMR vaccine. Only individuals with a known severe anaphylactic allergy to a vaccine component (such as gelatin or neomycin) would have a contraindication to receiving the vaccine.

Choice A rationale:
Hct 45% (Choice A) refers to the hematocrit level, which measures the proportion of blood volume occupied by red blood cells. While dehydration can lead to elevated hematocrit due to hemoconcentration, a hematocrit value of 45% is within the normal range for both males and females. Dehydration might cause a mild increase, but more significant elevations would be expected in cases of severe dehydration.
Choice B rationale:
Urine specific gravity 1.035 (Choice B) is an indicator of concentrated urine, which is a characteristic finding in dehydration. Dehydration reduces the body's water content, leading to more concentrated urine with higher specific gravity values. A normal range for urine-specific gravity is typically between 1.005 and 1.030.
Choice C rationale:
Capillary refill of less than 2 seconds (Choice C) is not a finding consistent with dehydration. Capillary refill time measures the time it takes for color to return to the nailbed after pressure is applied. Prolonged capillary refill time might indicate poor peripheral perfusion, which can be a sign of dehydration, but a refill time of less than 2 seconds is considered within the normal range.
Choice D rationale:
A urine output of 35 ml/hr (Choice D) is not indicative of dehydration. In fact, a urine output of 35 ml/hr is relatively normal and suggests adequate fluid intake and hydration. Dehydration would typically result in reduced urine output as the body conserves water.