Nokea
Which of the following can cause coup-contrecoup injuries?
- A. Rotational forces
- B. Deformation forces
- C. Deceleration forces
- D. Acceleration forces
Correct Answer: C
Rationale: Deceleration forces occur when the head is moving and abruptly comes to a stop, such as in a car crash. This sudden deceleration can cause the brain to hit against the skull, resulting in coup-contrecoup injuries. In a coup-contrecoup injury, the brain is damaged on opposite sides due to the initial impact and the rebound effect inside the skull. Rotational forces usually result in diffuse axonal injuries rather than coup-contrecoup injuries. Deformation forces can cause focal brain injuries but not coup-contrecoup injuries. Acceleration forces typically lead to diffuse brain injuries, not coup-contrecoup injuries. Therefore, the correct answer is deceleration forces.
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Which of the following is NOT a warning sign that compensatory mechanisms in a patient in shock are failing?
- A. Increasing heart rate above normal for the patient's age.
- B. Absent peripheral pulses
- C. Decreasing level of consciousness
- D. Increasing blood pressure
Correct Answer: D
Rationale: In a patient in shock, increasing blood pressure is not a sign that compensatory mechanisms are failing. As shock progresses and compensatory mechanisms fail, systolic blood pressure will decrease, leading to hypotension, which is a late and ominous sign in these patients. Therefore, choices A, B, and C are warning signs of failing compensatory mechanisms in shock: an increasing heart rate above normal, absent peripheral pulses, and decreasing level of consciousness, respectively. An increasing blood pressure is not indicative of compensatory failure in shock; instead, it may be a sign of compensatory mechanisms still trying to maintain perfusion pressure.
The mother of a child with hepatitis A tells the home care nurse that she is concerned because the child's jaundice seems worse. What is the nurse's best response?
- A. You need to change the child's diet.
- B. The child probably is infectious again.
- C. The jaundice may worsen before it resolves.
- D. You need to call the primary health care provider.
Correct Answer: C
Rationale: The best response for the nurse in this situation is to explain to the mother that jaundice may seem to worsen before it eventually gets better. This is a common occurrence in hepatitis A. Option A about changing the child's diet is irrelevant to the concern raised by the mother and not supported by evidence. Option B suggesting the child is infectious again is incorrect and may cause unnecessary alarm as jaundice does not indicate reinfection. Option D, advising the mother to call the primary health care provider, is premature as the nurse can first provide education and reassurance regarding the expected course of jaundice in hepatitis A.
An 80-year-old patient is admitted with dyspnea, dependent edema, rales, and distended neck veins. As the nurse monitors the patient, he becomes increasingly short of breath and begins to have cardiac dysrhythmias. The most critical intervention for this patient is to:
- A. Ensure his airway is open and unobstructed.
- B. Apply oxygen to maintain his oxygen saturation above 94%.
- C. Administer Dobutamine to increase cardiac output.
- D. Start an IV for monitoring fluid intake.
Correct Answer: A
Rationale: In a patient presenting with dyspnea, dependent edema, rales, distended neck veins, and developing cardiac dysrhythmias, the priority intervention is to ensure the airway is open and unobstructed. Maintaining an open airway is crucial for adequate ventilation and oxygenation, especially in a patient showing signs of impending respiratory distress and cardiac compromise. While applying oxygen to maintain oxygen saturation is important, ensuring airway patency takes precedence as it directly impacts the patient's ability to breathe. Administering Dobutamine may be necessary to improve cardiac output; however, addressing the airway first is essential to prevent further respiratory distress and worsening dysrhythmias. Starting an IV for monitoring fluid intake is not the most critical intervention in this scenario compared to ensuring airway patency and oxygenation.
In a 24-year-old woman, the term used to define uterine bleeding in which there is no menstruation is:
- A. Oligomenorrhea
- B. Amenorrhea
- C. Menorrhagia
- D. Metrorrhagia
Correct Answer: B
Rationale: Amenorrhea is the correct term for the absence of menstrual periods in a woman of childbearing age. It is typically defined as no menstruation for at least three consecutive cycles or six months. Oligomenorrhea refers to infrequent or irregular menstrual periods rather than complete absence. Menorrhagia is characterized by excessive menstrual bleeding, not the absence of menstruation. Metrorrhagia involves irregular, acyclic bleeding between menstrual periods, which is different from the absence of menstruation.
A 3-year-old child was brought to the pediatric clinic after the sudden onset of findings that include irritability, thick muffled voice, croaking on inspiration, being hot to the touch, sitting leaning forward, tongue protruding, drooling, and suprasternal retractions. What should the nurse do first?
- A. Prepare the child for an X-ray of the upper airways
- B. Examine the child's throat
- C. Collect a sputum specimen
- D. Notify the healthcare provider of the child's status
Correct Answer: D
Rationale: The correct initial action is to notify the healthcare provider of the child's status. The presenting symptoms described, such as irritability, thick muffled voice, croaking on inspiration, being hot to the touch, sitting leaning forward, tongue protruding, drooling, and suprasternal retractions, are indicative of epiglottitis, a potentially life-threatening condition. Immediate medical attention is crucial in such cases. While preparing for an X-ray or examining the throat may be necessary, the priority is to ensure prompt evaluation and intervention by the healthcare provider. Collecting a sputum specimen is not relevant in this situation and would cause unnecessary delay. Therefore, the nurse should prioritize communication with the healthcare provider to expedite appropriate management and treatment.