Nokea
Which hormone is most important in insulin secretion?
- A. gastrin
- B. CCK
- C. GIP
- D. secretin
Correct Answer: C
Rationale: The correct answer is C: GIP (glucose-dependent insulinotropic peptide). GIP is an incretin hormone released from the small intestine in response to glucose ingestion, stimulating insulin secretion from pancreatic beta cells. Gastrin (A), CCK (B), and secretin (D) are gastrointestinal hormones that do not directly influence insulin secretion. GIP plays a crucial role in regulating blood sugar levels by promoting insulin release, making it the most important hormone in insulin secretion.
You may also like to solve these questions
Which statement accurately describes Graves' disease?
- A. Exophthalmos occurs in Graves' disease.
- B. It is an uncommon form of hyperthyroidism.
- C. Manifestations of hyperthyroidism occur from tissue desensitization to the sympathetic nervous system.
- D. Diagnostic testing in the patient with Graves' disease will reveal an increased thyroid-stimulating hormone (TSH) level.
Correct Answer: A
Rationale: Exophthalmos (bulging eyes) is a common feature of Graves' disease due to the effects of excess thyroid hormones.
A nurse draws up 10 units of regular-acting insulin to give to a client who has been diabetic for 10 years. What does the nurse do prior to giving the insulin to the client to prevent a medication error?
- A. Check the client's last glucose level drawn and inform the physician of the result.
- B. Inform the diabetic educator that the client needs education.
- C. Assume the client knows what the insulin is for and why it is to be given.
- D. Have another nurse check the amount and type of insulin drawn up against the order.
Correct Answer: D
Rationale: Having another nurse check the amount and type of insulin helps prevent medication errors and ensures the correct medication is given.
Which of the following can be performed to determine a client's general status and rule out disorders?
- A. A complete blood count
- B. A complete blood count and chemistry profile
- C. Chemistry profile
- D. Radiographs of the chest or abdomen
Correct Answer: B
Rationale: A complete blood count (CBC) and a chemistry profile provide a comprehensive overview of a client's general health status and help in ruling out various disorders.
Which circuit symbol represents a heater?
- A. A
- B. B
- C. C
- D. D
Correct Answer: D
Rationale: The correct answer is D. In circuit symbols, a heater is typically represented by a zigzag line enclosed in a rectangle. This symbol signifies the generation of heat through resistance. Option A does not resemble a heater symbol, Option B is a resistor symbol, and Option C is a light bulb symbol. Therefore, the correct answer is D as it accurately represents a heater in circuit diagrams.
What is meant by antibiotic resistance?
- A. No bacteria will be killed by any antibiotic.
- B. Only some bacteria will be killed by some antibiotics.
- C. No viruses will be killed by any antibiotic.
- D. Only some viruses will be killed by some antibiotics.
Correct Answer: B
Rationale: The correct answer is B: Only some bacteria will be killed by some antibiotics. Antibiotic resistance refers to the ability of bacteria to survive and grow despite the presence of an antibiotic. This occurs when bacteria evolve and develop mechanisms to defend against antibiotics. It is not accurate to say that no bacteria will be killed by any antibiotic (choice A) as some bacteria may still be susceptible to certain antibiotics. Antibiotics are not effective against viruses, so choice C and D are incorrect. In summary, antibiotic resistance specifically pertains to bacteria developing the ability to survive some antibiotics, making choice B the correct answer.