P12S08: Atacand and Potassium chloride

 

Bottom line: Information on Atacand and Potassium chloride was used to maintain the management plan (stop potassium supplement), and to persuade other health professionals to make this change. There were no information-related patient health outcomes.

 

Level 1 outcome (situational relevance): On October 24, 2008, P12 did a search at work, by themselves, and after an encounter with a patient. They retrieved one information hit about Atacand and Potassium chloride. The reported search objective was: to address a clinical question. “I was sending a note to the doctor to suggest that she [the patient, a woman in her seventies] should think about stopping the potassium supplement because the Atacand [...] and the Spironolactone can both increase potassium. So I was concerned about her [the patient] taking a potassium supplement in addition to [Atacand and the Spironolactone]. [...] I went and created this pharmaceutical opinion with the substantiated evidence to send to her [the patient’s] family doctor. [...] It [the search around this clinical question] was for a specific patient that was taking all three of these medications.” According to P12, e-Therapeutics+ was the only source for information, and the found information was relevant.

 

Level 2 outcome (cognitive impact): One hit was associated with a report of positive cognitive impact (see table). Regarding confirmation, reassurance, and reminder, P12 stated: “I already knew that the interaction was there, I just wanted the substantiating evidence to be able to send it to the doctor. [...] I thought I knew the answer and so it confirmed what I thought.”

Retrieved information hit:

1) e-Therapeutics+ (CIRT): Drug interactions Tab – Lexi-interact – Keywords: Atacand and Potassium chloride – Analyze – Printed whole page (P12S08H01)

 

Level 3 outcome (information use): Information on Atacand and Potassium chloride was retrieved, and used to maintain (be more certain about) the management plan (stop potassium supplement), and to persuade other health professionals to make this change (information used as presented in e-Therapeutics+). “[The information was used] to persuade the physician to agree to stop it [to stop the potassium supplement].”

 

Level 4 outcome (patient health): Without this information hit, P12’s management of the patient would have been the same. There was no clear relationship between the information use and patient health outcomes.

 

 

Levels of outcome of information-seeking

 

Situational relevance

Positive cognitive impact

Information use

Patient health

Address a clinical question

Reminded something

Confirmed

Reassured

Persuade

Be more certain

No outcome

 

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