Which of the following is not a side effect associated with beta blockers?

Beta blockers are commonly used medications that primarily affect the cardiovascular system by blocking the effects of epinephrine (adrenaline) and reducing heart rate and blood pressure. While they do come with a range of potential side effects, impaired coordination is not typically associated with their use.

Cold hands and feet, fatigue, and shortness of breath are documented side effects of beta blockers. Cold hands and feet occur due to peripheral vasoconstriction, which can result from the medication's mechanism of reducing sympathetic nervous system activity. Fatigue is also common because beta blockers can lead to a decrease in physical stamina by reducing the heart's workload and output during exercise. Shortness of breath can occur in some individuals, particularly if the medication affects bronchial function, especially in asthmatic patients.

Impaired coordination, however, is not a known side effect of beta blockers. Coordination issues are more commonly related to other classes of medications, such as those affecting the central nervous system, rather than the cardiovascular actions of beta blockers. Thus, identifying impaired coordination as an option distinguishes it from the other side effects typically associated with this class of medication.