The healthcare provider is assessing a newborn who had undergone vaginal delivery. Which of the following findings is least likely to be observed in a normal newborn?
- A. (+) Moro reflex
- B. Heart rate is 80 bpm
- C. Respirations are irregular
- D. Uneven head shape
Correct Answer: B
Rationale: A heart rate of 80 bpm is least likely to be observed in a normal newborn. The normal heart rate range for a newborn is usually higher than 80 bpm, typically ranging from 120-160 bpm. The Moro reflex (choice A) is a normal newborn reflex, respirations being irregular (choice C) are expected due to the immature respiratory control center, and an uneven head shape (choice D) is common due to molding during vaginal delivery.
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The student nurse has performed a gestational age assessment of an infant and finds the infant to be at 32 weeks. On which set of characteristics is the nurse basing this assessment?
- A. Lanugo mostly gone, little vernix remaining on the body
- B. Prominent clitoris, enlarging labia minora, patent anus
- C. Full areola, 5 to 10 mm nipple bud, pinkish-brown areola
- D. Skin opaque, cracking at wrists and ankles, no visible vessels
Correct Answer: B
Rationale: The correct answer is B. At 30 to 32 weeks' gestation, the clitoris is prominent, and the labia minora are enlarging. The labia majora are small and widely separated. As gestational age increases, the labia majora increase in size. At 36 to 40 weeks, they almost cover the clitoris. At 40 weeks and beyond, the labia majora cover the labia minora and clitoris. Choices A, C, and D do not align with the characteristic features seen at 32 weeks of gestation, making them incorrect.
The healthcare provider assesses the newborn's ears to be parallel to the outer and inner canthus of the eye. The healthcare provider documents this finding to be which of the following?
- A. A normal position
- B. A possible chromosomal abnormality
- C. Facial paralysis
- D. Prematurity
Correct Answer: A
Rationale: When the top of the ear (pinna) is parallel to the outer and inner canthus of the eye, it is considered a normal position in a newborn. This alignment is an important assessment to ensure normal development and anatomy. Choices B, C, and D are incorrect because the parallel alignment of the ears to the outer and inner canthus of the eye is not indicative of a possible chromosomal abnormality, facial paralysis, or prematurity. It is simply a normal anatomical finding in a newborn.
Sometimes, people with congestive heart failure develop arrhythmias of the heart. These irregular rhythms can be conducive to developing a blood clot. Physicians frequently treat people with 'blood thinning' medicines that require regulation of the density of the blood. Which of these is the name for a blood-thinner?
- A. Erythromycin
- B. Tetracycline
- C. Warfarin
- D. Amoxicillin
Correct Answer: C
Rationale: Warfarin is a medication commonly used as a blood thinner to prevent blood clot formation. It works by inhibiting the clotting factors in the blood, thereby reducing the risk of clot formation and helping in the management of conditions like congestive heart failure and arrhythmias. Choices A, B, and D are antibiotics and do not have blood-thinning properties like Warfarin.
The nurse is using the New Ballard Score to assess the gestational age of a newborn delivered 4 hours ago. The infant's gestational age is 33 weeks based on early ultrasound and last menstrual period. The nurse expects the infant to exhibit which of the following?
- A. Full sole creases, nails extending beyond the fingertips, scarf sign showing the elbow beyond the midline
- B. Testes located in the upper scrotum, rugae covering the scrotum, vernix covering the entire body
- C. Ear cartilage folded over, lanugo present over much of the body, slow recoil time
- D. 1 cm breast bud, peeling skin and veins not visible, rapid recoil of legs and arms to extension
Correct Answer: C
Rationale: The correct answer is C. Ear cartilage folded over, lanugo present over much of the body, and slow recoil time are all characteristics of a preterm infant. A is incorrect because full sole creases, nails extending beyond the fingertips, and scarf sign showing the elbow beyond the midline are features of a term infant. B is incorrect as testes located in the upper scrotum, rugae covering the scrotum, and vernix covering the entire body are also indicative of a term infant. D is incorrect because a 1 cm breast bud, peeling skin and veins not visible, and rapid recoil of legs and arms to extension are characteristics seen in a more mature infant, not a preterm newborn.
Which of the following drinks is recommended for reconstituting oral rehydration salts?
- A. Water
- B. Fruit juice
- C. Soda
- D. All of the above
Correct Answer: A
Rationale: The correct answer is A: Water. Water is the ideal fluid to reconstitute oral rehydration salts because it helps in proper hydration without adding unnecessary sugars or acidity that may be present in fruit juice or soda. Using water ensures the salts are properly dissolved and can effectively rehydrate the individual. Choices B and C are incorrect because fruit juice and soda may contain sugars or acidity that can interfere with the rehydration process and are not recommended for reconstituting oral rehydration salts.