A nurse is teaching the parents of a child who is to start using a metered-dose inhaler (MDI) to treat asthma. Which of the following information should the nurse include in the teaching?
"The spacer increases the amount of medication delivered to the oropharynx."
"The spacer increases the amount of medication delivered to the lungs."
"Inhale rapidly using the spacer with the MDI."
"Cover exhalation slots of the spacer with lips when inhaling."
The Correct Answer is B
A. This statement is incorrect; the spacer does not primarily increase medication delivery to the oropharynx.
B. The spacer helps to increase the amount of medication that reaches the lungs by allowing larger particles to settle out and preventing them from being deposited in the mouth and throat.
C. Inhaling slowly and deeply is recommended for effective medication delivery when using an MDI with a spacer.
D. Covering the exhalation slots would prevent proper airflow and could cause the child to inhale exhaled air, which is not recommended during inhalation.
Free Nursing Test Bank
- Free Pharmacology Quiz 1
- Free Medical-Surgical Quiz 2
- Free Fundamentals Quiz 3
- Free Maternal-Newborn Quiz 4
- Free Anatomy and Physiology Quiz 5
- Free Obstetrics and Pediatrics Quiz 6
- Free Fluid and Electrolytes Quiz 7
- Free Community Health Quiz 8
- Free Promoting Health across the Lifespan Quiz 9
- Free Multidimensional Care Quiz 10
View Related questions
Correct Answer is A
Explanation
A. Distributive shock, particularly in the context of anaphylaxis, is characterized by widespread vasodilation that leads to a decrease in systemic vascular resistance and impaired blood flow to organs despite normal or increased cardiac output.
B. This option is incorrect because distributive shock involves decreased systemic vascular resistance due to vasodilation rather than an increase.
C. This statement describes hypovolemic shock, not distributive shock. Distributive shock is not primarily caused by the loss of blood volume.
D. While loss of myocardial contractility can lead to cardiogenic shock, it is not the mechanism behind distributive shock, which is related to vascular tone rather than heart function.
Correct Answer is A
Explanation
A. A child with varicella (chickenpox) should return to school only after all the blisters have crusted over, indicating that the infectious stage has passed and they are no longer contagious.
B. Receiving the varicella vaccine does not apply to children who already have the infection; vaccination is preventive, not a treatment for those already infected.
C. Completing one week of antiviral medication is not a sufficient criterion for returning to school, as the child may still be contagious until all lesions are crusted.
D. Returning to school as soon as the rash appears is not safe, as the child is highly contagious during the initial rash stage and until all lesions have crusted.