At 30 weeks' gestation, a client is admitted to the unit in premature labor. Her contractions are every 5 minutes and last 60 seconds, her cervix is closed, and the suture placed around her cervix during her 16th week of gestation, when she had the MacDonald procedure, can still be felt by the physician. The amniotic sac is still intact. She is very concerned about delivering prematurely. She asks the RN, "What is the greatest risk to my baby if it is born prematurely?" The RN's answer should be:
Answer(s): D
(A) Any infant would be at risk for hyperglycemia because the infant's liver is missing the islets of Langerhans, which secrete insulin to break down glucose for cellular use. Prematurity is not an added risk for hyperglycemia. (B) Both premature and mature infants can be at risk for hypoglycemia if their mother had gestational diabetes during pregnancy or entered the pregnancy with diabetes mellitus. These infants are exposed to high levels of maternal glucose while in utero, which causes the islets of Langerhans in the infant's liver to produce insulin. After birth when the umbilical cord is severed, the generous amount of maternal blood glucose is eliminated; however, there is continued islet cell hyperactivity in the infant's liver, which can lead to excessive insulin levels and depleted blood glucose. (C) Mature infants are born with an immature GI system. The nervous control of the stomach is incomplete at birth, salivary glands are immature at birth, and the intestinal tract is sterile. This is not the greatest risk to the premature infant. (D) Infants born before 37 weeks' gestation are at greatest risk for an insufficient amount of surfactant in the alveoli system of the lungs. Surfactant helps to prevent lung collapse and ensures stability of the respiratory system so that the infant can maintain his own respirations once the umbilical cord is severed at birth.
A client who is 7 months pregnant is diagnosed with pyelonephritis. The nurse anticipates the physician ordering:
Answer(s): C
(A) Oxytocin is prescribed to stimulate uterine contractions. (B) MgSO4is a central nervous system depressant prescribed to prevent and control convulsions related to preeclampsia. (C) Ampicillin is a penicillin derivative with no known teratogenic effects.This is the safest antibiotic during pregnancy. (D) Tetracycline stains teeth yellow and is not as safe as ampicillin during pregnancy.
A male client has been hospitalized with congestive heart failure. Medical management of heart failure focuses on improving myocardial contractility. This can be achieved by administering:
Answer(s): A
(A) Digoxin is a cardiac glycoside given to clients in heart failure to improve their myocardial contractility. (B) Furosemide is a loop diuretic given to clients in heart failure to promote diuresis. (C) O2is given to clients in heart failure to increase oxygenation and to prevent or treat hypoxemia. (D) Nitroglycerin is a nitrate given to clients in heart failure to increase their cardiac output by decreasing the peripheral resistance that the left ventricle must pump against.
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