Nokea
Which principle of body mechanics may help to reduce the risk of a back injury?
- A. Maintain a wide base of support
- B. Bend from the knees, not the waist
- C. Keep the back straight while lifting
- D. Push or pull objects rather than lifting
Correct Answer: C
Rationale: Proper body mechanics are crucial to prevent injuries, especially for professions involving lifting and moving objects. Keeping the back straight while lifting is essential to reduce the risk of back injuries as it helps maintain the spine's natural alignment and prevents excessive strain on the back muscles. Choosing choices A, B, and D would increase the risk of back injury. Maintaining a wide base of support provides stability, bending from the knees instead of the waist protects the lower back, and pushing or pulling objects reduces the strain on the back muscles, all contributing to preventing back injuries.
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Which of the following may represent an upper airway obstruction?
- A. Retractions
- B. Elongated expiratory phase
- C. Stridor
- D. Expiratory wheezing
Correct Answer: C
Rationale: Stridor is the sound produced by turbulent airflow through a partially obstructed upper airway. It is a classic sign of upper airway obstruction. While an elongated expiratory phase may indicate lower airway obstruction, stridor specifically points to an upper airway issue. Retractions are also often seen in upper airway obstruction due to the increased effort of breathing. Expiratory wheezing, on the other hand, is more indicative of lower airway conditions such as asthma or chronic obstructive pulmonary disease (COPD).
Which of the following safety precautions should the nurse discuss when working with an immunocompromised client?
- A. Avoid canned foods and increase consumption of fresh fruits and vegetables
- B. Hand-wash utensils after use and allow them to air dry
- C. Only drink tap water that has been filtered or boiled before consumption
- D. Never eat meals prepared in restaurants
Correct Answer: C
Rationale: The correct answer is to only drink tap water that has been filtered or boiled before consumption. Immunocompromised clients are susceptible to infections, so it is essential to take precautions to prevent exposure to harmful pathogens. Drinking tap water that has been filtered or boiled helps eliminate potential pathogens that could be harmful to the client's health. Choices A, B, and D do not directly address the issue of avoiding potential pathogens that could compromise the health of an immunocompromised client. Thus, they are incorrect. Hand-washing utensils, avoiding canned foods, and increasing fruit and vegetable consumption are good general hygiene practices but may not specifically address the needs of an immunocompromised client.
The NFPA diamond has four colors. The blue diamond:
- A. indicates hazards to health.
- B. designates that it is safe to use water to put out this type of fire.
- C. indicates that ice is necessary to treat an injury with this type of chemical.
- D. indicates that the chemical may be incinerated upon disposal.
Correct Answer: A
Rationale: The National Fire Protection Agency (NFPA) uses a safety diamond to communicate the level of threat posed by a specific chemical. The blue diamond in the NFPA diamond system signifies potential health hazards associated with the use of that chemical. Choice B is incorrect because the blue diamond does not indicate anything about using water to extinguish fires. Choice C is incorrect as the NFPA diamond does not provide information on treating injuries. Choice D is also incorrect as the blue diamond does not suggest incineration upon disposal; it pertains to health hazards.
When providing endotracheal suctioning, for how long should the nurse suction the endotracheal tube of an intubated client on a ventilator at a time?
- A. Five seconds or less
- B. Ten seconds or less
- C. At least 30 seconds
- D. No longer than 60 seconds
Correct Answer: B
Rationale: When providing endotracheal suctioning, the nurse should suction for no longer than ten seconds at a time. Suctioning for longer than ten seconds may cause hypoxia or bronchospasm. Extended suctioning may also place the client at risk of injury to the bronchial and tracheal structures. Choices C and D suggest prolonged suctioning durations that can lead to adverse effects on the client. Choice A, suctioning for five seconds or less, may not be adequate to clear secretions effectively, making choice B the most appropriate duration for safe and efficient suctioning in this scenario.
A patient's Foley catheter has been discontinued. You will dispose of this patient equipment by doing which of the following?
- A. Wearing gloves and then placing this equipment in the regular trash can after it is placed in a paper bag.
- B. Simply placing this equipment in the regular trash can after it is placed in a paper bag.
- C. Wearing gloves and then placing this equipment into a special 'hazardous waste' container.
- D. Simply placing this equipment in the 'hazardous waste' container after it is placed in a paper bag.
Correct Answer: C
Rationale: When disposing of used patient equipment, such as a Foley catheter, that has come in contact with bodily fluids, it is considered hazardous waste. The correct procedure involves wearing gloves and placing the Foley bag and tubing into a special 'hazardous waste' container. This container is marked as 'Hazardous' and is typically red to indicate the potential danger of its contents. Placing the equipment in a regular trash can, even if placed in a paper bag, is not appropriate as it does not meet the standards for disposing of hazardous waste. Therefore, options A and B are incorrect. Similarly, simply placing the equipment in a 'hazardous waste' container after it is placed in a paper bag is also incorrect as direct disposal into the designated container while wearing gloves is the proper protocol, making option D incorrect.