Nokea
You have the results of PCR tests for Mycoplasma pneumoniae; the number of positive tests is 83 collected from a 100 truly-infected persons. The sensitivity of this test is
- A. 17%
- B. 55%
- C. 60%
- D. 83%
Correct Answer: D
Rationale: Sensitivity = (True positives / Truly infected) * 100 = (83 / 100) * 100 = 83%.
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Which is the most appropriate nursing action when intermittently gavage-feeding a preterm newborn?
- A. Allow formula to flow by gravity.
- B. Insert tube through nares rather than mouth.
- C. Avoid letting newborn suck on tube.
- D. Apply steady pressure to syringe to deliver formula to stomach in a timely manner.
Correct Answer: C
Rationale: The most appropriate nursing action when intermittently gavage-feeding a preterm newborn is to avoid letting the newborn suck on the tube. Preterm infants are at risk for disorganized feeding patterns and can develop a non-nutritive sucking habit when the tube is in their mouth. Allowing them to suck on the tube can lead to difficulty transitioning to oral feeding once they are ready, as they may associate feeding with the tube rather than with proper suckling at the breast or bottle. Therefore, it is important to prevent non-nutritive sucking during gavage feedings to promote successful oral feeding later on.
For a patient receiving furosemide, the nurse evaluates the medication as being effective if which of the following effects occurs?
- A. Urine output increased
- B. Heart rate increased
- C. Serum potassium decreased
- D. Pulse pressure increased
Correct Answer: A
Rationale: Furosemide is a loop diuretic commonly used to help the body get rid of excess salt and water through increased urine output. By inhibiting the reabsorption of sodium and chloride in the loop of Henle in the kidneys, furosemide promotes the excretion of water, sodium, chloride, and other electrolytes. Therefore, the nurse would evaluate the medication as effective if the patient experiences increased urine output, as it indicates that the furosemide is working to eliminate excess fluids from the body.
A client is admitted to an acute care facility with esophageal cancer. The incidence of esophageal cancer is highest in:
- A. Black males.
- B. Women over age
Correct Answer: A
Rationale: The incidence of esophageal cancer is highest in black males. Studies have shown that black males have a higher risk of developing esophageal cancer compared to other demographic groups. Various factors contribute to this increased risk, including genetic predisposition, lifestyle habits (such as smoking and alcohol consumption), and potential disparities in access to healthcare and early detection. It is important for healthcare providers to be aware of these disparities in order to provide appropriate care and support for individuals at higher risk for esophageal cancer.
All the following are true about infant sleep between 2-6 months EXCEPT
- A. total sleep hours are about 14-16 hr/24 hr
- B. sleeps about 9-10 hr concentrated at night
- C. sleeps 2 naps/day
- D. the sleep cycle time is similar to that of adults
Correct Answer: D
Rationale: Infant sleep cycles differ significantly from adult patterns.
Which of the ff symptoms should a nurse assess in a client when implementing interventions for trauma to the upper airway?
- A. Pain when talking
- B. Increased nasal swelling
- C. Burning in the throat
- D. Presence of laryngospasm INFECTIONS OF THE LOWER RESPIRATORY AIRWAY
Correct Answer: D
Rationale: When implementing interventions for trauma to the upper airway, it is crucial for the nurse to assess for the presence of laryngospasm. Laryngospasm is a sudden spasm of the vocal cords that may cause difficulty breathing and in severe cases, complete airway obstruction. It is a serious and potentially life-threatening complication that can occur following upper airway trauma. Therefore, prompt recognition and treatment of laryngospasm are essential to ensure adequate oxygenation and ventilation for the client. Pain when talking, increased nasal swelling, and burning in the throat may also be symptoms encountered in upper airway trauma, but the presence of laryngospasm signifies a more critical condition requiring immediate intervention.