Nursing Elites

1. Sometimes, people with congestive heart failure develop arrhythmias of the heart. These irregular rhythms can be conducive to developing a blood clot. Physicians frequently treat people with 'blood thinning' medicines that require regulation of the density of the blood. Which of these is the name for a blood-thinner?

• A. Erythromycin
• B. Tetracycline
• C. Warfarin
• D. Amoxicillin

Correct answer: C

Rationale: Warfarin is a medication commonly used as a blood thinner to prevent blood clot formation. It works by inhibiting the clotting factors in the blood, thereby reducing the risk of clot formation and helping in the management of conditions like congestive heart failure and arrhythmias. Choices A, B, and D are antibiotics and do not have blood-thinning properties like Warfarin.

2. Which of the following is NOT a function of hormones?

• A. Producing new offspring
• B. Promoting growth and beauty
• C. Maintaining body temperature
• D. Fighting infections

Correct answer: A

Rationale: Hormones play various roles in the body, such as promoting growth and beauty, maintaining body temperature, and fighting infections. However, producing new offspring is not a direct function of hormones. Reproduction is primarily regulated by other factors like the reproductive system. Choice B is incorrect because hormones can indeed influence growth but not specifically 'beauty.' Choice C is incorrect as hormones can help regulate body temperature indirectly. Choice D is incorrect as hormones like cytokines can be involved in the body's immune response to fight infections.

3. Which of the following are classical clinical manifestations that a patient with diabetes mellitus will exhibit EXCEPT?

• A. Polyuria
• B. Polydipsia
• C. Diabetic Ketoacidosis
• D. Weight loss

Correct answer: C

Rationale: The classical clinical manifestations of diabetes mellitus include polyuria (increased urination), polydipsia (excessive thirst), and weight loss. Diabetic ketoacidosis is not a classical manifestation but rather a serious complication that can occur in individuals with uncontrolled diabetes.

4. What is the appropriate ventilation rate for an apneic infant?

• A. 8 to 10 breaths/min.
• B. 10 to 12 breaths/min.
• C. 12 to 20 breaths/min.
• D. 20 to 30 breaths/min.

Correct answer: C

Rationale: During resuscitation of an apneic infant, the appropriate ventilation rate is 12 to 20 breaths per minute. This rate helps provide adequate oxygenation and ventilation without causing harm to the infant. Choice A (8 to 10 breaths/min) is too low and may not provide sufficient ventilation. Choice B (10 to 12 breaths/min) is slightly below the recommended range, which may not be optimal for effective resuscitation. Choice D (20 to 30 breaths/min) is too high and may lead to overventilation and potential harm to the infant by causing hypocapnia.

5. A 4-year-old boy with a tracheostomy tube is experiencing respiratory distress. He has intercostal retractions, a heart rate of 80 beats/min, and an oxygen saturation of 85%. During his attempts to breathe, a gurgling sound is heard in the tracheostomy tube. You should:

• A. Ventilate through the tracheostomy tube.
• B. Place an oxygen mask over the tracheostomy tube.
• C. Remove the tracheostomy tube and clean it.
• D. Carefully suction the tracheostomy tube.

Correct answer: D

Rationale: In this scenario, the 4-year-old boy with a tracheostomy tube is showing signs of respiratory distress, including intercostal retractions, a low heart rate, and decreased oxygen saturation. The gurgling sound indicates a possible airway obstruction. Correctly, the immediate action should be to carefully suction the tracheostomy tube. Suctioning can help clear any secretions or obstructions, thus improving the child's ability to breathe effectively. Ventilating through the tube, placing an oxygen mask over it, or removing and cleaning the tube would not address the potential obstruction and could worsen the respiratory distress.

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