ATI RN
Endocrine System Questions and Answers PDF Questions
Question 1 of 5
Which one of the following drugs can trigger severe bronchospasm in a patient who has asthma?
Correct Answer: D
Rationale: The correct answer is D: Propranolol. Propranolol is a non-selective beta-blocker that can trigger severe bronchospasm in patients with asthma by blocking beta-2 receptors in the lungs, leading to bronchoconstriction. Atropine (A) is an anticholinergic drug that dilates the airways. Isoproterenol (B) is a beta-agonist that relaxes the airway smooth muscles. Phenylephrine (C) is a sympathomimetic drug that constricts blood vessels, not airways.
Question 2 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 3 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 4 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.
Question 5 of 5
Which of the following is the property in which a hormone CANNOT exhibit its full effect without another hormone?
Correct Answer: D
Rationale: The correct answer is D: permissiveness. Permissiveness is when one hormone enables another hormone to fully exert its effects. The rationale is as follows: 1. Permissiveness allows a hormone to work effectively only when another hormone is present to "permit" its action. 2. Assertiveness (A) and antagonism (B) do not involve the requirement of another hormone for full effect. 3. Synergism (C) involves two hormones working together for a greater effect, but they can still exert some effect individually. In summary, permissiveness is the only option where a hormone cannot exhibit its full effect without the presence of another hormone.