Nokea
The nurse is preparing to administer enoxaparin (Lovenox) 135 mg subcutaneously. The medication is available in a cartridge labeled 150 mg/ml. How many ml should the nurse administer? (enter numeric value only. If rounding is required, round to the nearest tenth.)
- A. 0.9
- B. 1
- C. 9
Correct Answer: A
Rationale: The calculation is based on the prescribed dose and the concentration of the medication.
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All of the following are true regarding attention deficit hyperactivity disorder (ADHD), except
- A. Dopamine transporter gene (DAT1) and dopamine 4 receptor gene (DRD4) are implicated in the diagnosis
- B. Impaired fine motor movement and poor coordination are 'soft' but specific signs of ADHD
- C. Developmentally inappropriate behavior must commence before 7 years of age and present for at least 6 months
- D. Maternal lead exposure is associated with ADHD
Correct Answer: B
Rationale: Impaired fine motor movement and poor coordination are not specific signs of ADHD; they are nonspecific and can occur in other conditions.
What are FIVE indications for pacemaker insertion in a child with congenital heart block?
- A. Symptomatic bradycardia
- B. Ventricular dysfunction or low cardiac output
- C. Wide QRS escape
- D. Complex ventricular ectopy
Correct Answer: A
Rationale: Symptomatic bradycardia is the most common indication for pacemaker insertion in children with congenital heart block, to ensure adequate heart rate and perfusion.
What finding would the nurse expect when measuring blood pressure on all four extremities of a child with coarctation of the aorta?
- A. Blood pressure higher on the right side
- B. Blood pressure higher on the left side
- C. Blood pressure lower in the arms than in the legs
- D. Blood pressure lower in the legs than in the arms
Correct Answer: D
Rationale: The characteristic symptoms of coarctation of the aorta are a marked difference in blood pressure and pulses between the upper and lower extremities. Pressure is increased proximal to the defect and decreased distal to the coarctation.
Which medication should the nurse prepare for immediate administration to a child experiencing an anaphylactic reaction to a bee sting?
- A. Diphenhydramine (Benadryl)
- B. Dobutamine (Dobutarex)
- C. Epinephrine (Adrenalin)
- D. Calcium chloride (calcium chloride)
Correct Answer: C
Rationale: After the first priority of establishing an airway, administration of epinephrine is the drug of choice. Diphenhydramine, an antihistamine, is usually not used for severe reactions. Dobutamine and calcium chloride are not appropriate drugs for this type of reaction.
Patients with a small PDA have the following criteria EXCEPT
- A. asymptomatic risk for endocarditis
- B. normal peripheral pulses
- C. normal pulmonary artery pressure
- D. normal life expectancy
Correct Answer: A
Rationale: Small PDAs typically have a low risk for endocarditis.