The most common neonatal sepsis and meningitis infections seen within 24 hours after birth are caused by which organism?
- A. Candida albicans
- B. Chlamydia trachomatis
- C. Escherichia coli
- D. Group B beta-hemolytic streptococci
Correct Answer: C
Rationale: Escherichia coli is the most common cause of early-onset neonatal sepsis and meningitis within 24 hours after birth. E. coli can be transmitted from the mother to the infant during delivery, particularly if there is prolonged rupture of membranes or maternal infection. Infections caused by E. coli in newborns can be severe and life-threatening. It is important to identify and promptly treat infections caused by E. coli in neonates to prevent complications and improve outcomes.
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In Langerhans cell histiocytosis (LCH), all the following manifestations are at high risk of mortality in patients EXCEPT
- A. liver
- B. spleen
- C. lung
- D. hematopoietic system
Correct Answer: C
Rationale: Lung involvement, while serious, is less lethal compared to liver, spleen, or hematopoietic system involvement.
Where would nonpathologic cyanosis normally be present in the newborn shortly after birth?
- A. Feet and hands
- B. Bridge of nose
- C. Circumoral area
- D. Mucous membranes
Correct Answer: D
Rationale: Nonpathologic cyanosis in newborns shortly after birth is typically seen in the mucous membranes, such as the lips and oral mucosa. This transient cyanosis is caused by the normal physiologic response of the newborn's immature circulatory system adjusting to extrauterine life. As oxygenation improves and blood circulation stabilizes, the cyanosis will usually resolve within the first few days after birth. It is important for healthcare providers to distinguish between pathologic and nonpathologic cyanosis in newborns to ensure appropriate management and monitoring.
Which of the following types of cells is the immune system's shutoff mechanism?
- A. Plasma cells
- B. Suppressor T cells
- C. Helper T cells
- D. B lymphocytes
Correct Answer: B
Rationale: Suppressor T cells, also known as regulatory T cells, play a critical role in regulating the immune response by acting as the immune system's shutoff mechanism. These cells help maintain immune tolerance and prevent overactivation of the immune system, thereby preventing autoimmune reactions and excessive inflammation. Suppressor T cells exert their immunosuppressive effects by inhibiting the function of other immune cells, such as effector T cells and B cells, and helping to control the overall balance of the immune system.
A male client is prescribed medications that depress thrombocytes. The nurse should monitor for which of the ff signs and symptoms in the client?
- A. Sore throat and swollen glands
- B. Pernicious anemia with weakness
- C. Bleeding gums and dark tarry tools
- D. Thickening of blood and bruising
Correct Answer: C
Rationale: Thrombocytes, also known as platelets, play a crucial role in blood clotting. Medications that depress thrombocytes can lead to decreased clotting ability and an increased risk of bleeding. Therefore, monitoring for signs and symptoms of bleeding is essential. Bleeding gums and dark tarry stools are indicative of bleeding in the oral cavity and gastrointestinal tract, respectively, and are key indicators to watch for in a client taking medications that depress thrombocytes. Options A, B, and D are not directly related to the impact of thrombocyte depression on clotting function.
Which of the ff is the characteristic of a ketogenic diet that is suggested for children with seizures?
- A. High carbohydrate diet
- B. High fat diet
- C. High protein diet
- D. Low fat diet
Correct Answer: B
Rationale: The characteristic of a ketogenic diet that is suggested for children with seizures is a high-fat diet. Ketogenic diet is a specialized high-fat, low-carbohydrate diet that helps to control seizures in some children with epilepsy, especially those who do not respond well to medication. The high fat content in the diet leads to the production of ketones, which are believed to reduce seizure activity in the brain. Therefore, a high-fat diet is a key aspect of the ketogenic diet for managing seizures in children.