QuestionSBA
QuestionChoice
Alendronic acid has a common side effect of dizziness, however, it is less likely to cause postural hypotension than tamsulosin, as described by the feeling of light-headedness.
10035496
e
Alendronic acid
QuestionChoice
Although a common regular medication for older patients, macrogol is unlikely to cause this presentation unless the laxative effect contributes to severe dehydration.
10035493
b
Macrogol
QuestionChoice
Atorvastatin is a common regular medication, however, it is unlikely to cause this presentation as it is not known to cause dizziness or postural hypotension.
10035495
d
Atorvastatin
QuestionChoice
Aspirin is an anti-platelet agent which is unlikely to cause this presentation as it is not commonly known to cause dizziness or postural hypotension.
10035494
c
Aspirin
QuestionChoice
Tamsulosin is an alpha blocker used to treat benign prostatic hyperplasia, a common symptom of which is nocturia. It can commonly cause postural hypotension, classically depicted by dizziness on standing, as outlined in this scenario.
10035492
a
Tamsulosin
Concept
Chapter
2693
4044
Postural Hypotension
Topic
191
Geriatrics
19502
Tamsulosin can cause postural hypotension by blocking alpha-1 adrenergic receptors, which leads to relaxation of smooth muscles in blood vessels and a subsequent drop in blood pressure when standing, increasing the risk of dizziness and falls, especially in elderly patients.
A 92-year-old male has a fall when trying to get out of bed to use the toilet in the middle of the night. He describes feeling dizzy and light-headed on standing before falling onto his knees and staying there for a few minutes. He denies hitting his head or any other injury.

Of the following medications, which is the most likely to have caused these symptoms?
a