Which statement made by a 15-year-old adolescent with a diagnosis of neurofibromatosis (an autosomal dominant genetic disorder) best demonstrates an understanding of the mechanism of inheritance for the disease?
a. "My babies will probably not have neurofi-bromatosis.".
b. "My babies have a 50% chance of having neurofibromatosis.".
c. "Whether my babies have problems depends on the father.".
d. "My babies have a 25% chance of having neurofibromatosis.".
B
Neurofibromatosis is an autosomal dominant genetic disorder that occurs when the abnormal gene is carried on the affected chromosome with a normal gene. Because the abnormal gene is dominant, an individual with the defective gene has a 50% chance of transmitting the defect to an infant with each pregnancy. Neurofibromatosis is not a sex-linked genetic disease; therefore, either the father or the mother genetically transfers it to the infant. A parent with the defective gene will genetically transfer either a normal or abnormal gene to an infant. Because the defective gene is dominant, there is a 50% probability of the child inheriting the disease.
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The patient on the mental health unit who should be assessed as being at highest risk for directing violent behavior toward others is the patient who has:
a. obsessive-compulsive disorder and performs many rituals. b. paranoid delusions of being followed by the Mafia. c. severe depression with feelings of worthlessness and self-loathing. d. completed alcohol withdrawal and is now in a rehabilitation program.
A patient presents to the emergency department with suspected thyroid storm. The nurse should be alert to which of the following cardiac rhythms while providing care to this patient?
a. Atrial fibrillation b. Idioventricular rhythm c. Junctional rhythm d. Sinus bradycardia
Which conditions can result in prolonged prothrombin time?
What will be an ideal response?
The nurse should be aware that an effective plan to achieve adequate pain relief without maternal risk is most effective if:
a. The mother gives birth without any analgesic or anesthetic. b. The mother and family's priorities and preferences are incorporated into the plan. c. The primary health care provider decides the best pain relief for the mother and family. d. The nurse informs the family of all alternative methods of pain relief available in the hospital setting.