Nokea
Which respiratory division includes the larynx and respiratory structures distal?
- A. upper respiratory tract.
- B. lower respiratory tract.
- C. internal respiratory tract.
- D. alveoli of the respiratory tract.
Correct Answer: B
Rationale: The correct answer is B, lower respiratory tract. The larynx and structures distal to it, such as the trachea, bronchi, and lungs, are part of the lower respiratory tract. The upper respiratory tract (choice A) includes the nose, nasal cavity, pharynx, and larynx. Internal respiratory tract (choice C) is not a commonly used term in respiratory anatomy. Alveoli of the respiratory tract (choice D) specifically refer to the air sacs in the lungs where gas exchange occurs, not the entire respiratory division that includes the larynx and structures distal to it.
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A nurse working in a geriatric clinic sees clients with "cold" symptoms and rhinitis. The primary health care provider (PHCP) often leaves a prescription for diphenhydramine. What action by the nurse is best?
- A. Teach the client about possible drowsiness.
- B. Instruct the client to drink plenty of water.
- C. Consult with the PHCP about the medication.
- D. Encourage the client to take the medication with food.
Correct Answer: C
Rationale: The correct answer is C: Consult with the PHCP about the medication. This is the best action because diphenhydramine may not be the most appropriate medication for older adults due to potential side effects like increased risk of falls, confusion, and urinary retention. Consulting with the PHCP will ensure that the medication is safe and effective for the client.
A: Teaching about drowsiness is important but not the priority.
B: Drinking water is generally good advice but not specific to diphenhydramine.
D: Taking medication with food can help reduce stomach upset but doesn't address the concerns related to diphenhydramine in older adults.
The nurse is caring for a client who is one hour post cardiac catheterization. What task should the nurse delegate to a licensed practical/vocational nurse (LPN/VN)?
- A. Teach the patient about the post procedure plan of care.
- B. Perform the initial assessment of the catheter insertion site.
- C. Give the scheduled lipid-lowering medication.
- D. Titrate the diltiazem infusion according to the agency protocol.
Correct Answer: C
Rationale: The correct answer is C: Give the scheduled lipid-lowering medication. LPN/VNs can administer medications, including lipid-lowering drugs, under the supervision of a registered nurse. Teaching (choice A) requires a higher level of critical thinking and education, which is typically done by an RN. Performing an initial assessment (choice B) requires advanced assessment skills that an LPN/VN may not have. Titration of medications (choice D) involves adjusting dosages based on specific parameters, which is beyond the scope of practice for an LPN/VN.
Diaphragm present in mammals is
- A. Membrane between external and middle ear
- B. Membrane around the brain
- C. Partition between the thoracic and abdominal cavities
- D. Membrane around lungs
Correct Answer: C
Rationale: The diaphragm in mammals is a muscular structure that separates the thoracic and abdominal cavities. This is essential for breathing as it contracts and relaxes to facilitate the movement of air into and out of the lungs. Therefore, the correct answer is C.
Choice A is incorrect because the membrane between the external and middle ear is called the eardrum or tympanic membrane. Choice B is incorrect as the membrane around the brain is the meninges. Choice D is incorrect as the membrane around the lungs is the pleura.
The nurse is caring for a patient who has just returned to the unit after a colon resection. The patient is showing signs of hypoxia. The nurse knows that this is probably caused by what?
- A. Nitrogen narcosis
- B. Infection
- C. Impaired diffusion
- D. Shunting
Correct Answer: D
Rationale: The correct answer is D: Shunting. Hypoxia after a colon resection is likely due to shunting, which is a condition where blood bypasses the normal oxygenation process in the lungs, leading to decreased oxygen levels in the blood. Shunting can occur due to factors such as collapsed alveoli or blood vessel blockages.
Nitrogen narcosis (A) is not related to hypoxia but rather occurs in scuba divers exposed to high partial pressures of nitrogen. Infection (B) may cause fever and inflammation but is not the primary cause of hypoxia in this scenario. Impaired diffusion (C) refers to issues with gas exchange in the alveoli and is not the most likely cause of hypoxia after a colon resection.
In which part of the body Mycobacterium tuberculosis affects
- A. Lungs
- B. Skin and Meninges
- C. Intestine
- D. All these
Correct Answer: D
Rationale: The correct answer is D. Mycobacterium tuberculosis primarily affects the lungs, causing tuberculosis. However, it can also spread to other parts of the body, such as the skin, leading to cutaneous tuberculosis, and the meninges, causing tuberculous meningitis. It can also affect the intestines, causing gastrointestinal tuberculosis. Therefore, the correct answer is D, as Mycobacterium tuberculosis can impact multiple parts of the body. Choice A (Lungs) is correct but does not encompass all the affected areas. Choices B (Skin and Meninges) and C (Intestine) are incorrect as they do not cover all the possible sites of infection by Mycobacterium tuberculosis.