ATI Maternal Newborn Proctored

Correct Answer: A

Rationale: Vitamin K is typically administered in the vastus lateralis muscle of a newborn to prevent bleeding disorders. The vastus lateralis muscle is the preferred site for IM injections in infants due to its size and accessibility, allowing for easy and safe administration. The ventrogluteal and dorsogluteal sites are more commonly used in adults due to better muscle mass and less risk of injury to nearby structures. The deltoid muscle is typically used for older children and adults for IM injections, as it is a well-developed muscle suitable for injections in these populations.

Correct Answer: D

Rationale: The correct sequence of maternal changes during pregnancy is as follows: Amenorrhea (absence of menstrual periods), Goodell's sign (softening of the cervix), Quickening (first fetal movements felt by the mother), and Lightening (baby descending into the pelvis). These changes occur at different stages of pregnancy and are important indicators of fetal development and maternal adaptation. Choice A is correct as it is the initial change indicating possible pregnancy. Choices B, C, and D follow in the correct order of occurrence during pregnancy. Choices B, C, and D are incorrect as they do not follow the correct sequence of maternal changes.

Correct Answer: D

Rationale: Fetal heart tones above the umbilicus at midline are indicative of a breech presentation, specifically a frank breech position. In a frank breech position, the baby's buttocks are presenting first, which aligns with the fetal heart tones being above the umbilicus. This position indicates that the baby is not in the normal head-down position for birth, which can impact the delivery process and may require specific interventions. Cephalic presentation (Choice A) is the normal head-down position for birth, transverse lie (Choice B) is when the baby is positioned horizontally in the uterus, and posterior position (Choice C) refers to the baby's back being positioned towards the mother's back.

Correct Answer: B

Rationale: The basal body temperature should be taken every morning before arising as it provides the most accurate reading. This time ensures consistency and eliminates variations that may occur throughout the day due to activities or environmental factors. Choice A is incorrect because ovulation can vary among individuals, and checking temperature on specific days may not align with the actual ovulation day. Choice C is incorrect as there is no direct correlation between intercourse and basal body temperature. Choice D is incorrect because taking the temperature before going to bed does not provide a consistent baseline reading.

Correct Answer: B

Rationale: When measuring a newborn's chest circumference, the appropriate anatomical landmark to use is the nipple line. This point is consistent and allows for accurate and standardized measurements across all newborn assessments. The sternal notch is not typically used for chest circumference measurements in newborns. The xiphoid process is located at the lower end of the sternum and is not an appropriate landmark for chest circumference measurement. The fifth intercostal space is typically used for locating the point of maximal impulse (PMI) during cardiac assessments, not for measuring chest circumference.