Nursing Elites

1. How will a ventricular septal defect affect blood flow?

• A. Blood will shunt left to right, causing increased pulmonary flow and no cyanosis.
• B. Blood will shunt right to left, causing decreased pulmonary flow and cyanosis.
• C. No shunting occurs due to high pressure in the left ventricle.
• D. Increased pressure in the left atrium hinders the circulation of oxygenated blood in the circulating volume.

Correct answer: A

Rationale: A ventricular septal defect allows blood to shunt left to right, leading to increased pulmonary flow. This results in oxygenated blood mixing with deoxygenated blood, causing no cyanosis as the mixed blood is still oxygenated. The shunting from left to right overloads the pulmonary circulation, leading to increased pulmonary flow. Choice B is incorrect because blood does not shunt right to left in a ventricular septal defect. Choice C is incorrect as shunting does occur due to the pressure differences between the ventricles. Choice D is incorrect because the defect affects the ventricles, not the atrium, and does not hinder the circulation of oxygenated blood in the circulating volume.

2. After attaching the AED to a 7-year-old child in cardiac arrest, you push the analyze button and receive a shock advised message. After delivering the shock, you should:

• A. assess for a carotid pulse.
• B. open the airway and ventilate.
• C. immediately perform CPR.
• D. reanalyze the cardiac rhythm.

Correct answer: C

Rationale: After delivering a shock, it is crucial to immediately resume CPR. CPR helps circulate oxygenated blood to vital organs until the AED prompts you to stop for further rhythm analysis. This continuous cycle of CPR and defibrillation maximizes the chances of restoring a normal cardiac rhythm and improving the child's chances of survival. Assessing for a carotid pulse is not necessary after a shock as pulse checks are often unreliable during resuscitation. Opening the airway and ventilating is not the immediate step after delivering a shock as CPR takes precedence. Reanalyzing the cardiac rhythm should be done only when prompted by the AED after a set period of CPR.

3. A child was brought to the emergency department with complaints of nausea, vomiting, and fruity-scented breath. The resident on duty diagnosed the child with diabetic ketoacidosis. Which of the following should the nurse expect to administer?

• A. Potassium chloride IV infusion.
• B. Dextrose 5% IV infusion.
• C. Ringer's Lactate.
• D. Normal saline IV infusion

Correct answer: D

Rationale: In diabetic ketoacidosis (DKA), there is a state of dehydration and electrolyte imbalance. Normal saline is the initial fluid of choice to help restore intravascular volume and improve electrolyte balance. It also helps to correct acidosis. Potassium chloride IV infusion is commonly added to the treatment regimen once kidney function is confirmed to prevent hypokalemia. Dextrose 5% IV infusion is not the first-line treatment for DKA as it can worsen hyperglycemia. Ringer's Lactate is not typically used as the initial fluid for managing DKA as it contains potassium and could worsen hyperkalemia.

4. If a baby weighs 14 kg, how much fluid should be administered to the baby over 24 hours using a rate of 100 ml/kg?

• A. 1400ml
• B. 2600ml
• C. 1650ml
• D. 3360ml

Correct answer: A

Rationale: To calculate the fluid requirement for a baby, multiply the weight of the baby (14 kg) by the fluid rate (100 ml/kg): 14 kg x 100 ml/kg = 1400 ml. Therefore, the correct answer is 1400 ml.

5. What action should you take if a newborn's heart rate is 50 beats/min?

• A. Begin chest compressions.
• B. Reassess in 30 seconds.
• C. Administer blow-by oxygen.
• D. Start positive-pressure ventilations.

Correct answer: D

Rationale: If a newborn's heart rate is below 60 beats per minute, the appropriate action is to start positive-pressure ventilations. Ventilations help deliver oxygen to the newborn's body and support respiratory function, which is critical in cases of bradycardia. Chest compressions are not recommended until the heart rate is below 60 despite adequate ventilation. Reassessment is essential but not the immediate action required in this scenario. Administering blow-by oxygen alone may not effectively address the underlying cause of bradycardia, making positive-pressure ventilations the priority intervention in this case.

Similar Questions