Final answer:
The rule of thumb for the effect of 10meq of potassium on a patient's potassium level can cause a small increase in serum potassium levels.
Step-by-step explanation:
The rule of thumb for the effect of 10meq of potassium on a patient's potassium level depends on various factors such as the patient's overall potassium balance and medical condition. Generally, in a healthy individual, an increase of 0.1 mmol/L in serum potassium levels can be expected with the administration of 10meq of potassium.
For example, if a patient has a baseline potassium level of 3.5 mmol/L and receives an IV dose of 10meq of potassium, their potassium level might increase by 0.1 mmol/L to around 3.6 mmol/L.