Nokea
What type of fire is a black fire extinguisher used for?
- A. Fires involving organic materials(eg wood, cloth, paper).
- B. Fires involving solid materials(eg plastic).
- C. Fires involving live electrical equipment.
- D. Fires involving cooking oils and fats.
Correct Answer: A
Rationale: Black fire extinguishers are used for fires involving organic materials.
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Which one following statements on transitional care is true:
- A. There is no need for transitional care for patients discharged to a nursing home as there are healthcare professionals on site
- B. Transitional care starts when a patient is at the next destination of care
- C. There is no time limit for the duration of transitional care
- D. Transitional care is most impactful in high-risk patients with complex medical issues
Correct Answer: D
Rationale: Transitional care is critical for high-risk, complex patients to prevent readmissions. Nursing homes still require transitional planning, it starts before discharge, and has a defined duration, making D the most accurate.
Which of the following medication types are used to decrease the workload of the heart by blocking sympathetic stimulation of receptors that work on the SA node and myocardial cells, thus decreasing the force of myocardial contraction and directly reducing a patient's heart rate?
- A. Alpha-adrenergic agents
- B. Beta-blockers
- C. Calcium-channel blockers
- D. Sodium-channel blockers
Correct Answer: B
Rationale: The correct answer is B: Beta-blockers. Beta-blockers decrease the workload of the heart by blocking the sympathetic stimulation of beta-adrenergic receptors in the heart. This action results in a decrease in heart rate and the force of myocardial contraction. By blocking these receptors, beta-blockers reduce the impact of adrenaline and other stress hormones on the heart, leading to a decrease in the heart's workload.
A: Alpha-adrenergic agents primarily work on alpha-adrenergic receptors and do not have the same effect on decreasing the workload of the heart.
C: Calcium-channel blockers work by blocking calcium channels in the heart and blood vessels, leading to vasodilation and decreased contractility of the heart. While they can reduce the heart's workload, they do not primarily target sympathetic stimulation of receptors working on the SA node and myocardial cells.
D: Sodium-channel blockers primarily affect the conduction of electrical impulses in the heart and are used for different purposes, such as
When the body is exposed to an allergen what substance is released?
- A. Lymph
- B. Histamine
- C. Hormones
- D. Platelets
Correct Answer: B
Rationale: When the body is exposed to an allergen, the immune system releases histamine. Histamine is a key player in triggering allergic reactions by causing inflammation, itching, and other symptoms. Lymph is involved in the immune response but is not directly released in response to allergens. Hormones and platelets are not the primary substances released in response to allergens.
What is an important safety measure when a nursing assistant transfers a resident to a surgical bed?
- A. Ensuring that the linen is tightly tucked all along the top and bottom of the bed
- B. Having the bed and stretcher elevated to the highest position
- C. Locking the stretcher and bed wheels before transferring
- D. Positioning the bed and stretcher about six inches apart before transferring
Correct Answer: C
Rationale: The correct answer is C: Locking the stretcher and bed wheels before transferring. This is important to prevent any movement of the bed or stretcher during the transfer, ensuring the safety of the resident. If the wheels are not locked, there is a risk of the bed or stretcher shifting unexpectedly, which could lead to falls or injuries. It is crucial for the nursing assistant to secure the wheels to maintain stability and control during the transfer process. The other choices are incorrect because they do not directly address the safety aspect of securing the wheels to prevent movement and ensure a safe transfer for the resident.
Which of the following is the best way for a nursing assistant to care for a resident with a functional barrier?
- A. The NA should prevent the resident from resting to help keep his body active.
- B. The NA should remove oxygen only long enough to clean the resident's face and ears.
- C. The NA should encourage the resident to speak quickly during conversations to keep the vocal cords strong.
- D. The NA should use a communication board to help the resident ask questions.
Correct Answer: D
Rationale: The correct answer is D because using a communication board helps the resident with a functional barrier to ask questions effectively. This approach promotes clear communication and empowers the resident to express their needs.
A is incorrect as preventing the resident from resting is not beneficial for someone with a functional barrier.
B is incorrect as removing oxygen can be harmful and is not necessary for cleaning the face and ears.
C is incorrect as encouraging the resident to speak quickly may cause stress and is not a recommended approach for maintaining vocal cord strength.