Answer to Question 1
ANS: B
Using a microwave oven to thaw or heat breast milk decreases the anti-infective properties of the breast milk, lowers the vitamin C content, and changes the fat content. Breast milk should be thawed overnight in a refrigerator or in a warm water bath. A microwave should not be used. If steam is created, the milk is too hot. The bottle should be inverted several times after defrosting or warming.
Answer to Question 2
ANS: C
One of the earliest signs of HF is tachycardia (sleeping heart rate >160 beats/min) as a direct result of sympathetic stimulation. The practitioner needs to be notified for evaluation of possible HF. Although oxygen or a semiupright position may be indicated, the first action is to report the data to the practitioner.