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Congenital heart defects are classified as all of the following? (Select all that apply)
- A. Mixed defects
- B. Obstruction defects
- C. Decreased pulmonary blood flow
- D. Acquired defects
Correct Answer: A,B,C
Rationale: Congenital heart defects can be classified based on pathophysiology. A: Mixed defects involve combination of two types of abnormalities, B: Obstruction defects involve narrowing/blockage in blood flow, and C: Decreased pulmonary blood flow includes defects leading to decreased blood flow to lungs. D: Acquired defects result from external factors and not present at birth. E, F, G are not applicable as no information is provided. Thus, A, B, C are correct based on classification of congenital heart defects.
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A nurse is caring for a newborn whose mother was taking methadone during her pregnancy, which of the following findings indicates the newborn is experiencing withdrawal?
- A. Bulging fontanels
- B. Acrocyanosis
- C. Bradycardia
- D. Hypertonicity
Correct Answer: D
Rationale: The correct answer is D: Hypertonicity. Newborns exposed to opioids in utero often exhibit symptoms of withdrawal, known as Neonatal Abstinence Syndrome (NAS). Hypertonicity, or increased muscle tone, is a common sign of NAS. This occurs due to the withdrawal effects of methadone on the central nervous system. Bulging fontanels (A) are not typically associated with NAS. Acrocyanosis (B) is a common finding in newborns and not specific to NAS. Bradycardia (C) refers to a slow heart rate and is not a typical sign of NAS.
When caring for a patient with Syndrome of inappropriate Antidiuretic Hormone Secretion (SIADH), the nurse would expect her patient to exhibit the following clinical signs and symptoms (Select all that apply):
- A. Fluid retention
- B. Hypotonicity
- C. Anorexia
- D. Frequent urination
Correct Answer: A,B,C
Rationale: Step-by-step rationale:
A: Fluid retention - In SIADH, there is excessive ADH secretion leading to water retention and dilutional hyponatremia.
B: Hypotonicity - Due to water retention, serum osmolality decreases leading to hypotonicity.
C: Anorexia - SIADH can cause nausea, vomiting, and anorexia due to hyponatremia and cerebral edema.
Incorrect choices:
D: Frequent urination - SIADH causes water retention, leading to decreased urine output, not frequent urination.
A nurse is caring for a school-age child who is postoperative and received morphine via IV bolus for pain 10 min ago. Which of the following findings is the nurse's priority?
- A. Constipation
- B. Sedation
- C. Bradypnea
- D. Euphoria
Correct Answer: C
Rationale: The correct answer is C: Bradypnea. This is the priority finding because morphine, an opioid, can cause respiratory depression leading to bradypnea or slow breathing. Monitoring the child's respiratory status is crucial to prevent respiratory compromise or arrest. A: Constipation is a common side effect but not an immediate concern. B: Sedation is expected after receiving morphine but not as critical as respiratory depression. D: Euphoria is a possible side effect but not as concerning as respiratory depression. Thus, the priority is to monitor for signs of respiratory depression to ensure the child's safety.
Your patient has just returned from the OR following an arterial septal defect repair. You are reviewing your orders and question the fluid rate ordered. Your patient is 6 years old and weighs 50 pounds. Select the appropriate hourly maintenance fluid rate for your patient.
- A. 63 ml/hr
- B. 64 ml/hr
- C. 65 ml/hr
- D. 107 ml/hr
Correct Answer: A
Rationale: The appropriate hourly maintenance fluid rate for a 6-year-old patient weighing 50 pounds can be calculated using the Holliday-Segar method, which recommends 100 ml/kg/day for the first 10 kg of body weight, 50 ml/kg/day for the next 10 kg, and 20 ml/kg/day for each additional kg. Converting the patient's weight from pounds to kg (50 lbs / 2.2 = 22.73 kg), the calculation would be:
100 ml x 10 kg + 50 ml x 10 kg + 20 ml x 2.73 kg = 1000 ml + 500 ml + 54.6 ml = 1554.6 ml/day
To convert this to an hourly rate, divide by 24 hours: 1554.6 ml/day / 24 hours = 64.775 ml/hr, which rounds down to 63 ml/hr (Option A).
The other choices are incorrect because
The nurse understands that the pathophysiology of a thermal injury includes (Select All that Apply):
- A. Hematuria
- B. Edema
- C. Hypovolemia
- D. Anemia
Correct Answer: B,C
Rationale: The correct answers are B: Edema and C: Hypovolemia. Edema occurs due to increased capillary permeability after a thermal injury, leading to fluid leakage into tissues. Hypovolemia results from fluid shift out of the blood vessels into the injured tissues, causing decreased blood volume. Hematuria (A) is not typically associated with thermal injuries. Anemia (D) is a decrease in the number of red blood cells or hemoglobin, not a direct result of thermal injury.