A nurse is teaching a client who has asthma about how to use a metered-dose inhaler with a spacer. Which of the following pieces of information should the nurse include in the teaching?
"The spacer should make a whistling sound as you inhale."
"Hold your breath for 10 seconds once you inhale."
"Clean the spacer daily with cold water."
"Wait 30 seconds between puffs."
The Correct Answer is B
Choice A reason: The statement that "the spacer should make a whistling sound as you inhale" is not accurate. A whistling sound from the spacer may indicate that the air is being inhaled too quickly and that the user needs to slow down. The purpose of the spacer is to hold the medication released from the inhaler so that it can be inhaled more easily and effectively into the lungs, not to produce a whistling sound.
Choice B reason: Holding one's breath for 10 seconds after inhaling the medication allows for better deposition of the medication in the lungs. This pause gives the medication time to settle in the airways rather than being exhaled too quickly. It is a recommended practice to maximize the effectiveness of the inhaled medication.
Choice C reason: Cleaning the spacer is important to ensure that it works correctly and is free of any residue or debris that could obstruct the medication's path. However, the instruction to "clean the spacer daily with cold water" is incomplete. After rinsing with cold water, the spacer should be left to air dry without rinsing or wiping, as this can create static that affects medication delivery.
Choice D reason: Waiting 30 seconds between puffs is recommended to allow the user to breathe normally for a short period and to prepare for the next dose of medication. This time interval helps to ensure that the second puff is not rushed and that the medication from the first puff has had time to act.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: Irrigating the affected eye from the inner corner toward the outer corner is the recommended method for ocular irrigation. This technique helps to flush out the chemical agent without risking further contamination to the other eye or nasal passages.
Choice B reason: Positioning the client sitting up with their head turned toward the right side is appropriate when irrigating the left eye. This position allows gravity to assist in the flow of the irrigation solution away from the unaffected eye, reducing the risk of cross-contamination.
Choice C reason: Placing a strip of pH paper under the upper lid of the affected eye is a critical step in ocular irrigation after a chemical splash. It is used to measure the pH of the ocular surface to ensure that the pH has normalized to a range between 7.0 and 7.2 after irrigation, indicating that the chemical has been adequately flushed out.
Choice D reason: Using sterile water for ocular irrigation is not recommended because it can cause osmotic imbalances and damage to the corneal cells. Instead, normal saline or balanced salt solutions are preferred as they are isotonic and more compatible with the physiological environment of the eye.
Correct Answer is B
Explanation
Choice A reason: While wearing gloves is a standard precaution to prevent contamination and protect the nurse from potential pathogens, the gloves used for collecting a guaiac smear sample do not need to be sterile. Clean, non-sterile gloves are typically sufficient for this procedure.
Choice B reason: It is crucial to discard any samples that contain urine because urine can interfere with the results of the fecal occult blood test (FOBT). The presence of urine can cause false positives due to the peroxidase activity in urine, which can lead to unnecessary further testing.
Choice C reason: Collecting three samples from a single bowel movement is not recommended. Instead, it is advised to collect samples from three separate bowel movements to increase the likelihood of detecting intermittent bleeding, which is common in conditions like colorectal cancer.
Choice D reason: Taking the sample from the outer edge of formed stool is not the best practice. The sample should be taken from different areas of the stool to ensure a representative sample, as blood may not be uniformly distributed throughout the stool.
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