Autonomic & Peripheral Nervous system, Autacoids
Pharmacology · Topic 2
Source: NMC CBME Curriculum 2024 · Volume I · Pharmacology · Topic 2 · combined PDF page 175
Practice questions
- According to the review, what is the primary consequence of exposure to high levels of radio-frequency energy (RFE)?
- In the review, autonomic nervous system activity and autacoids are considered relevant principally because they may influence which responses during RFE heating?
- A researcher compares cardiovascular responses during environmental heating with those during RFE-induced heating. Which consideration is specifically emphasized in the review?
- A study finds a cardiovascular effect during rapid RFE heating. Which conclusion about slower environmental heating is most defensible from the review?
- What did the review report about antihistamines and circulatory collapse during RFE-induced heating?
- Which interpretation of the reported lack of antihistamine benefit during RFE-induced circulatory collapse is most appropriate?
- During terminal RFE exposure in rats, what effect of methysergide did the review report?
- In the methysergide finding during terminal RFE exposure in rats, which variables were reported to show no effect despite decreased survival time?
- A rat exposed to terminal RFE has unchanged heart rate and blood pressure after methysergide but a shorter survival time. What is the strongest inference supported by the review?
- What effect of platelet-activating factor blockade was reported before RFE exposure?
- Despite lowering heart rate before RFE exposure, platelet-activating factor blockade had what reported effect on the subsequent increase in heart rate during heating?
- A drug lowers pre-exposure heart rate but does not alter the heart-rate increase during heating. Which reported intervention best matches this pattern?
- What did the review conclude about nitric oxide and hypotension occurring during rapid RFE heating?
- Which qualification is essential when applying the review's nitric-oxide finding to hypotension?
- How did the review characterize the evidence on prostaglandins in RFE-induced heating responses?
- Which statement best represents the review's account of bradykinin in RFE-induced heating responses?
- What is the appropriate conclusion about angiotensin and RFE-induced heating responses based on the review?
- The review reports little or no study of prostaglandins, bradykinin, and angiotensin in RFE heating. Which inference is scientifically justified?
- What paired outcome was reported with propranolol during RFE exposure?
- A report shows lower final colonic temperature with propranolol during RFE exposure. Why is it incorrect to conclude from that finding alone that propranolol was protective?
- Which finding about nadolol during RFE exposure is reported in the review?
- What pharmacokinetic property of nadolol was used in the review's interpretation of the propranolol–nadolol contrast?
- Given propranolol's reported effects and nadolol's poor blood-brain barrier penetration with no reported survival or temperature effect, what mechanism did the review suggest might alter thermoregulation?
- How should the proposed central beta-adrenergic explanation for the propranolol–nadolol contrast be described?
- Which comparison of propranolol and nadolol is consistent with the review?
- What does the review say about autonomic effects on potassium changes during heating?
- Why did the review identify autonomic effects on potassium changes during heating as a topic for further study?
- A student claims that the review proves autonomic activity has no role in potassium changes during heating because the mechanism was not fully investigated. Which response is best?
- Which statement most accurately characterizes the evidence base presented in the review on autacoids and autonomic responses to RFE heating?