If the nurse reviews the client's lab results and notes a serum calcium level of 7.9 mg/dl. It is most appropriate for the nurse to monitor the client for 'Impaired myocardial contractility'.
There can be mild to severe myocardial contractile dysfunction without clinical heart failure. Inadequate blood flow to peripheral muscles may result from impaired cardiac pumping, and insufficient blood flow to muscles may play a significant role in reduced exercise tolerance. Myocardial contractility declines, which leads to a reduction in cardiac output (mainly in stroke volume) and, ultimately, a reduction in oxygen delivery to the tissues.
The following biochemical and cellular variables influence contractility:
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