Nokea
At the time of birth, what is the grayish white, cheeselike substance that normally covers the newborn's skin called?
- A. Miliaria
- B. Meconium
- C. Amniotic fluid
- D. Vernix caseosa
Correct Answer: D
Rationale: Vernix caseosa is the grayish white, cheeselike substance that normally covers a newborn's skin at the time of birth. It is a natural substance produced by the baby's skin glands while in the womb. Vernix caseosa helps protect the baby's delicate skin from the amniotic fluid in the uterus and acts as a moisturizer as well. It also has antimicrobial properties, providing a barrier against infection. After birth, healthcare providers typically wipe off or gently wash the vernix from the baby's skin during the first bath.
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Which of the ff. statements would the nurse understand is true when assessing normal auditory acuity using the Rinne test?
- A. The patient perceives sound equally in both ears.
- B. Air conduction is heard longer than bone conduction in both ears.
- C. Bone conduction is heard longer than air conduction in both ears.
- D. The patient's left ear will perceive the sound better than the right ear.
Correct Answer: B
Rationale: In the Rinne test, a tuning fork is placed first on the mastoid bone behind the ear to test bone conduction, and then beside the ear to test air conduction. A normal finding in the Rinne test is when air conduction (heard beside the ear) is longer than bone conduction (heard on the mastoid bone) in both ears. This indicates that sound waves travel through the air better than through bone. If air conduction is heard longer than bone conduction, it suggests normal auditory acuity.
Pneumocystic pneumonia. Which anemias are described as microcytic, hypochromic anemia?
- A. Vitamin B12 and iron deficiency anemia
- B. Folic acid and iron deficiency anemia
- C. Iron deficiency anemia and thalassemia
- D. Sickle cell anemia and anemia if chronic disease
Correct Answer: C
Rationale: Microcytic, hypochromic anemia is characterized by small red blood cells with decreased hemoglobin content. Iron deficiency anemia and thalassemia are the two main types of anemia that present with these characteristics. Iron deficiency anemia is caused by a lack of iron in the body, which is essential for the production of hemoglobin. Thalassemia is a genetic disorder that results in decreased production of normal hemoglobin. Both conditions lead to small, pale red blood cells, fitting the description of microcytic, hypochromic anemia. Other choices such as Vitamin B12 deficiency anemia (choice A), folic acid deficiency anemia (choice B), sickle cell anemia (choice D), and anemia of chronic disease (choice D) typically present as normocytic or macrocytic anemias.
A newborn is diagnosed with retinopathy of prematurity. What should the nurse know about this diagnosis?
- A. Blindness cannot be prevented.
- B. No treatment is currently available.
- C. Cryotherapy and laser therapy are effective treatments.
- D. Long-term administration of oxygen will be necessary.
Correct Answer: C
Rationale: Retinopathy of prematurity (ROP) is a disorder of the developing retinal blood vessels in premature infants. Cryotherapy and laser therapy are both effective treatments for ROP. These treatments can help prevent vision loss and improve the chances of maintaining good vision. Prompt detection and intervention are key in managing ROP to prevent long-term visual impairment. Therefore, the nurse should be aware that cryotherapy and laser therapy are effective interventions for ROP, contrary to the options suggesting blindness cannot be prevented or no treatment is available. Long-term administration of oxygen can contribute to the development of ROP, so careful monitoring and management of oxygen levels are necessary in premature infants to prevent this condition.
Neonates of mothers with diabetes are at risk for which complication following birth?
- A. Atelectasis
- B. Microcephaly
- C. Pneumothorax
- D. Macrosomia
Correct Answer: D
Rationale: Neonates of mothers with diabetes are at risk for macrosomia following birth. Macrosomia refers to a condition where the newborn baby is significantly larger than average, typically weighing more than 4,000 grams (8 pounds, 13 ounces) at birth. This risk is primarily due to maternal hyperglycemia, which can lead to excessive fetal growth. The elevated glucose levels in the maternal circulation can cross the placenta and stimulate fetal insulin production, resulting in increased growth and potentially leading to macrosomia. Neonates born with macrosomia are at increased risk for complications during delivery, such as shoulder dystocia, birth injuries, and the need for cesarean delivery.
The MOST common cause of obstructive sleep apnea in children is
- A. obesity
- B. allergies
- C. adenotonsillar hypertrophy
- D. pharyngeal reactive edema due to gastroesophageal reflux
Correct Answer: C
Rationale: Adenotonsillar hypertrophy is the leading cause of obstructive sleep apnea in children.