The client is 34 years old and has recently started taking theophylline.
The nurse knows that medication teaching has been successful when the client agrees to what activity?
Eating foods high in potassium.
Avoiding beverages that contain caffeine.
Taking the medication on an empty stomach.
Limiting fluid intake to 1,000 mL a day.
The Correct Answer is B
It works by relaxing the smooth muscles of the airways and increasing airflow to the lungs.
However, theophylline has a narrow therapeutic range and can cause side effects such as nausea, vomiting, insomnia, tremors, and cardiac arrhythmias if the blood level is too high.
Caffeine is a stimulant that can increase the effects of theophylline and raise the risk of toxicity.
Therefore, patients taking theophylline should avoid caffeine-containing beverages such as coffee, tea, cola, and energy drinks.
Choice A is wrong because eating foods high in potassium has no effect on theophylline metabolism or action.
Potassium is an electrolyte that is important for nerve and muscle function, but it does not interact with theophylline.
Choice C is wrong because taking the medication on an empty stomach can increase the absorption of theophylline and cause gastric irritation.
Theophylline should be taken with food or milk to reduce stomach upset and prevent fluctuations in blood levels.
Choice D is wrong because limiting fluid intake to 1,000 mL a day can cause dehydration and increase the concentration of theophylline in the blood.
Theophylline
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Propylthiouracil (PTU) is an antithyroid drug that blocks the synthesis of thyroid hormones by interfering with the oxidation of iodine and the coupling of iodotyrosines.
This reduces the levels of triiodothyronine (T) and thyroxine (T) in the blood and relieves the symptoms of hyperthyroidism.
Choice A is wrong because PTU does not destroy any part of the thyroid gland.
It only inhibits the production of thyroid hormones within the gland.
Choice B is wrong because PTU does not suppress the anterior pituitary gland’s secretion of thyroid-stimulating hormone (TSH).
TSH is a hormone that stimulates the thyroid gland to produce thyroid hormones.
PTU does not affect the feedback loop between the hypothalamus, pituitary, and thyroid glands.
Choice D is wrong because PTU does not suppress the hypothalamus’s production of thyrotropin-releasing hormone (TRH).
TRH is a hormone that stimulates the pituitary gland to secrete TSH.
PTU does not affect the feedback loop between the hypothalamus, pituitary, and thyroid glands.
Normal ranges for T are 80 to 220 ng/dL, for T are 4.5 to 11.2 mcg/dL, and for TSH are 0.4 to 4.0 mIU/L.
Correct Answer is D
Explanation
Choice A reason:
Injury sustained to the perineum during birth is not a perinatal injury, but a perineal injury. The perineum is the area between the anus and the genitals, and it can be torn or cut during vaginal delivery. This is a common complication that affects the mother, not the fetus or newborn.
Choice B reason:
Traumatic injury to the mother during pregnancy is not a perinatal injury, but a maternal injury. This can occur due to accidents, violence, or complications of pregnancy such as preeclampsia or placental abruption. This can affect the mother's health and well-being, and may also have consequences for the fetus or newborn.
Choice C reason:
Traumatic injury to a fetus is not a perinatal injury, but a fetal injury. This can occur due to external forces such as blunt trauma, penetrating trauma, or radiation exposure that affect the fetus in utero. This can cause fetal distress, bleeding, fractures, or organ damage.
Choice D reason:
Injury sustained surrounding birth is a perinatal injury. This occurs in the period shortly before, during, or after delivery. This can be a critical time when the baby has to transition from surviving off oxygen, blood, and nutrients from the mother to separating from the womb and breathing oxygen from the air. Perinatal injuries can include head injuries, nerve injuries, hemorrhages, fractures, or soft-tissue injuries that result from the forces of labor and delivery or medical interventions such as forceps or vacuum extraction. Perinatal injuries can lead to long-term neurodevelopmental challenges for the newborn.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today