A nurse is preparing to administer digoxin to a 6-month-old infant. Prior to administering the dose, the nurse measures the apical heart rate. The nurse should withhold the dose if the infant's apical heart rate is less than what rate?

A. Changes in the voice signal the beginning of puberty.
Explanation: Changes in the voice, specifically deepening, are associated with puberty, but they typically occur later in puberty. The voice change is related to the growth of the larynx (Adam's apple) and tends to happen after other physical changes.
B. Gynecomastia commonly occurs during late puberty.
Explanation:
Gynecomastia, the development of breast tissue in males, is a common occurrence during puberty. It is often temporary and tends to happen during late puberty. The enlargement of breast tissue can be a source of concern for adolescent boys, and providing information about the normalcy and temporary nature of gynecomastia can be reassuring for both parents and boys.
C. Puberty might be delayed if scrotal changes have not occurred by the age of 11 years.
Explanation: The timing of pubertal changes can vary among individuals. While certain age ranges are provided as general guidelines, the absence of scrotal changes by a specific age does not necessarily indicate delayed puberty. Puberty is a gradual process with individual variations.
D. Growth spurts in height occur toward the end of midpuberty.
Explanation: Growth spurts in height, known as the adolescent growth spurt, typically occur during midpuberty. This phase is marked by rapid growth in height, changes in body composition, and the development of secondary sexual characteristics.

A. Bottle-feed with diluted fruit juice:
Incorrect: Diluted fruit juice is not recommended for infants with diarrhea. Fruit juices, even when diluted, may contain sugars that can exacerbate diarrhea. It's important to focus on water or rehydration solutions.
B. Discontinue breast-feeding until the diarrhea resolves:
Incorrect: Breast milk is an essential source of nutrition for infants, and discontinuing breastfeeding is not recommended, even during episodes of mild diarrhea. Breast milk helps maintain hydration and provides essential nutrients.
C. Provide an increased intake of water.
Correct Answer: Maintaining hydration is crucial during episodes of diarrhea. Offering the infant increased water intake helps prevent dehydration. Rehydration solutions specifically designed for infants can also be recommended.
D. Avoid all solid foods:
Incorrect: While avoiding certain solid foods may be recommended in some cases, it's not necessary to completely avoid all solid foods for a 12-month-old with mild diarrhea. The emphasis should be on maintaining hydration and offering easily digestible foods.