The nurse is reviewing information collected while providing client care. Which findings should the nurse identify as being a homeostatic mechanism?
1. The client's heart rate increases when walking up a flight of stairs.
2. The client shivers when core body temperature drops.
3. A child's bone growth occurs in spurts.
4. Decreased secretion of insulin occurs when food is not ingested.
5. Lactation occurs in a pregnant woman.
Correct Answer: 1, 2, 4
Rationale 1: Homeostatic mechanisms have characteristics that include self-regulation, such as automatically increased respiratory rates.
Rationale 2: Homeostatic mechanisms have characteristics that include compensatory actions, such as shivering to create body heat.
Rationale 3: This is not an example of a homeostatic mechanism; they are self-regulation, compensation, negative feedback, and utilization of multiple mechanisms to correct a physiological imbalance.
Rationale 4: Homeostatic mechanisms have characteristics that include regulation by negative feedback systems.
Rationale 5: This is not an example of a homeostatic mechanism; they are self-regulation, compensation, negative feedback, and utilization of multiple mechanisms to correct a physiological imbalance.
You might also like to view...
Of all factors, what is the most important risk factor in pulmonary disease?
A) Air pollution from vehicles B) Dangerous chemicals in the workplace C) Active and passive cigarette smoke D) Loss of the ozone layer of the atmosphere
A patient is admitted for joint replacement surgery. A nurse identifies that this type of surgery is usually necessary due to
1. An amputated limb. 2. A comminuted fracture. 3. Advanced osteoarthritis. 4. A severe sprain.
A nurse is administering a drug to a client through an implanted port. Before giving the medication, what does the nurse do to ensure safety?
A. Administers 5 mL of a heparinized solution B. Checks for blood return C. Flushes the port with 10 mL of normal saline D. Palpates the port for stability
Implementing a treatment plan for asthma that includes cromolyn sodium involves educating the patient on proper use of the medication. Which of the following is a valid instruction for its use?
A. Cromolyn sodium should be administered prophylactically by oral inhalation three to four times per day. B. Cromolyn sodium should be administered prophylactically by oral inhalation once a week. C. Cromolyn sodium should be administered an hour after exposure to the allergen. D. None of these are correct.