Which infant would be more likely to have Rh incompatibility?

A brilliant, uniform red reflex in both eyes is a sign of a healthy retina and optic nerve. The red reflex is the reflection of light from the retina that varies in color depending on the patient’s skin tone. It can be seen by holding the ophthalmoscope directly in front of your eye and asking the patient to focus on a point in the distance.

Choice B is wrong because an abnormal finding would be an absent or asymmetric red reflex, which could indicate cataracts, retinal detachment, or other eye diseases.

Choice C is wrong because a possible visual defect would not affect the red reflex, but rather the visual acuity or field of vision of the patient.

A vision screening would involve testing the patient’s ability to read letters or numbers at different distances.

Choice D is wrong because small hemorrhages would not cause a brilliant, uniform red reflex, but rather dark spots or blotches on the retina that can be seen with the ophthalmoscope.

Hemorrhages can be caused by diabetes, hypertension, or trauma.

An Apgar score of 10 at 1 minute after birth indicates that the infant is having no difficulty adjusting to extrauterine life but who should be assessed again at 5 minutes after birth. The Apgar score is a scoring system that evaluates the health of newborns at 1 and 5 minutes after birth based on five criteria: appearance, pulse, grimace, activity, and respiration. Each criterion is scored from 0 to 2, and the total score ranges from 0 to 10. A score of 7 to 10 is considered reassuring, a score of 4 to 6 is moderately abnormal, and a score of 0 to 3 is concerning.

Choice A is wrong because an Apgar score of 10 at 1 minute does not mean that the infant needs no further testing. The infant should still be assessed again at 5 minutes and monitored for any signs of distress or complications.

Choice B is wrong because an Apgar score of 10 at 1 minute does not indicate an infant in severe distress who needs resuscitation. An Apgar score of 0 to 3 would indicate a concerning condition that may require immediate intervention.

Choice C is wrong because an Apgar score of 10 at 1 minute does not predict a future free of neurologic problems. The Apgar score alone cannot be considered as evidence of, or a consequence of, asphyxia or brain injury; it does not predict individual neonatal mortality or neurologic outcome; and it should not be used for that purpose.

Normal ranges for each criterion are as follows:

• Appearance (color): pink all over (2 points), body pink but extremities blue (1 point), blue, bluish-gray, or pale all over (0 points)
• Pulse (heart rate): greater than 100 beats per minute (2 points), less than 100 beats per minute (1 point), absent (0 points)
• Grimace (response to stimulation): cough or sneeze, cry and withdrawal of foot with stimulation (2 points), facial movement/grimace with stimulation (1 point), absent (0 points)
• Activity (muscle tone): active movement (2 points), limbs flexed (1 point), limp or floppy (0 points)
• Respiration (breathing): good, strong cry (2 points), irregular, weak crying (1 point), absent (0 points)