Nokea
What drives respiration in a patient with advanced chronic respiratory failure?
- A. Hypoxemia
- B. Hypocapnia
- C. Hypercapnia
- D. None of the above
Correct Answer: A
Rationale: In patients with advanced chronic respiratory failure, such as those with chronic obstructive pulmonary disease (COPD), the respiratory drive shifts from being primarily stimulated by high levels of carbon dioxide (hypercapnia) to being driven by low oxygen levels (hypoxemia). This shift is due to the body's adaptation to chronic respiratory acidosis and hypoxemia. As a result, hypoxemia becomes the primary stimulus for respiration in these patients. Hypocapnia, a low level of carbon dioxide, is not a common driver of respiration in patients with advanced chronic respiratory failure. Therefore, the correct answer is hypoxemia.
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Which of the following is TRUE about shock?
- A. A patient with severe shock does not always have an abnormally low blood pressure.
- B. Confusion and deteriorating mentation are indicative of hypotensive shock.
- C. Patients with compensated shock may not be able to maintain a normal blood pressure.
- D. A normal blood pressure does not imply that the patient is stable.
Correct Answer: B
Rationale: Confusion and deteriorating mentation are indeed indicative of hypotensive shock. It is important to note that a patient with hypotensive shock will likely exhibit deteriorating mental status. Choice A is incorrect because a patient in severe shock may not always have an abnormally low blood pressure, making it an unreliable indicator of shock severity. Choice C is incorrect because patients with compensated shock may present with normal blood pressure but still have inadequate tissue perfusion. Choice D is incorrect because a normal blood pressure does not guarantee the patient's stability, especially in cases of shock where tissue perfusion may be compromised despite normal blood pressure readings.
A child diagnosed with Hepatitis A is under the care of a healthcare provider. Which of the following precautions would be most important to take to prevent the transmission of this infectious disease?
- A. Encourage the Hepatitis A vaccine for family members and siblings
- B. Use needleless systems if possible; otherwise, use careful needle precautionary measures
- C. Teach the child and enforce strict and frequent hand washing
- D. Teach the child and family about the dangers of contaminated food and water
Correct Answer: C
Rationale: The most crucial precaution to prevent the transmission of Hepatitis A is to emphasize strict and frequent hand washing. Hepatitis A is a virus that spreads through the oral-fecal route and can survive on human hands. Hand washing is the most effective measure to reduce the risk of transmission. Encouraging the Hepatitis A vaccine for family members and siblings (Choice A) is beneficial for prevention but not as directly impactful as hand washing. While needle precautions (Choice B) are important in healthcare settings, they are not directly relevant to preventing the spread of Hepatitis A. Teaching about the dangers of contaminated food and water (Choice D) is important for general hygiene but may not be as effective as emphasizing hand hygiene in preventing the spread of Hepatitis A.
The nurse has just admitted a client with severe depression. From which focus should the nurse identify a priority nursing diagnosis?
- A. Nutrition
- B. Elimination
- C. Activity
- D. Safety
Correct Answer: D
Rationale: In caring for a client with severe depression, safety is a critical priority. The nurse must address precautions to prevent suicide as part of the care plan. While nutrition, elimination, and activity are important aspects of care, safety takes precedence due to the immediate risk of harm associated with depression. Ensuring the client's safety by implementing measures to prevent self-harm or suicide is the priority intervention. Addressing nutrition, elimination, and activity can follow once the client's safety is assured.
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.
A child is suspected of suffering from intussusception. The nurse should be alert to which clinical manifestation of this condition?
- A. Tender, distended abdomen
- B. Presence of fecal incontinence
- C. Incomplete development of the anus
- D. Infrequent and difficult passage of dry stools
Correct Answer: A
Rationale: Intussusception is an invagination of a section of the intestine into the distal bowel, and it is the most common cause of bowel obstruction in children aged 3 months to 6 years. A tender, distended abdomen is a typical clinical manifestation of intussusception. The presence of fecal incontinence is not a characteristic presentation of intussusception; it describes encopresis, which generally affects preschool and school-aged children but is not specific to intussusception. Incomplete development of the anus describes imperforate anus, a disorder diagnosed in the neonatal period, not intussusception. The infrequent and difficult passage of dry stools is characteristic of constipation, a common issue in children that can occur at any age, although it often peaks at 2 to 3 years old.