ATI RN
Endocrine System Questions and Answers PDF Questions
Question 1 of 5
The following plant alkaloids give derivatives which are used to treat migraine:
Correct Answer: D
Rationale: The correct answer is D: Ergot alkaloids. Ergot alkaloids, such as ergotamine and dihydroergotamine, are known to be effective in treating migraines by constricting blood vessels in the brain. This helps to reduce the intensity of migraine headaches. Vinca alkaloids (A) are used in cancer treatment, digitalis glycosides (B) in heart conditions, and stramonium alkaloids (C) in asthma and spasms, but they are not commonly associated with migraine treatment.
Question 2 of 5
Hyoscine is one of the most effective drugs for preventing motion sickness, but may cause photophobia or blurred vision. Which is the most similar prototype drug?
Correct Answer: C
Rationale: Step 1: Hyoscine is an antimuscarinic drug used for motion sickness. Step 2: Atropine is a similar prototype drug as it also belongs to the antimuscarinic class. Step 3: Atropine, like hyoscine, can cause photophobia and blurred vision. Step 4: Monoamine oxidase inhibitors (A) are not related to antimuscarinic drugs. Step 5: Propranolol (B) is a beta-blocker and not an antimuscarinic drug. Step 6: Bethanechol (D) is a muscarinic agonist, opposite in action to antimuscarinic drugs like hyoscine and atropine.
Question 3 of 5
Which conditions would give the results shown in diagrams X and Y?
Correct Answer: C
Rationale: The correct answer is C because diagram X shows an increase in oxygen concentration over time, which indicates photosynthesis occurring. In photosynthesis, plants take in carbon dioxide and release oxygen. Therefore, the conditions of oxygen at 25°C and carbon dioxide at 25°C would support this process. Choices A, B, and D have incorrect combinations of temperature and gases that would not result in the observed increase in oxygen concentration in diagram X.
Question 4 of 5
Which statement explains why elements in the same group of the Periodic Table have similar chemical properties?
Correct Answer: D
Rationale: Correct Answer: D Rationale: 1. Elements in the same group have similar outer electron configurations. 2. Outer-shell electrons determine chemical properties. 3. Having the same number of outer-shell electrons leads to similar chemical behaviors. 4. This is due to similar valence electron interactions in chemical reactions. Summary: A: Incorrect. Protons do not determine chemical properties in the same group. B: Incorrect. Neutrons do not affect chemical properties in the same group. C: Incorrect. Having the same number of electron shells does not guarantee similar chemical properties.
Question 5 of 5
Which statement about the appliance must be correct?
Correct Answer: D
Rationale: The correct answer is D: It is double-insulated. This is correct because double-insulated appliances have an extra layer of insulation for added safety, eliminating the need for a grounded connection. This feature protects users from electric shocks. Explanation for why the other choices are incorrect: A: It does not have a live connection - This is not necessarily true as appliances can have live connections depending on their design and function. B: It has two fuses - While some appliances may have fuses, the number of fuses does not determine the correctness of the statement about the appliance. C: It has two switches - The presence of two switches does not necessarily indicate the correctness of the statement about the appliance.