My husband is a cardiac patient with a triple bypass,hypertension,diabetic and has water in his lungs. his left ventricle is operating at 32 % .his in the manufacturing environment. there are somedays his mentally and physically exhausted.

Weakness. : Your husband has multiple underlying medical conditions that I can see would make him exhausted. HIs ejection fraction is low. https://www.heart.org/en/health-topics/heart-failure/diagnosing-heart-failure/ejection-fraction-heart-failure-measurement. He should see his physician. If possible he may need a different position at work.

Multiple conditions: Excellent information from Dr. Hickerson!. I wasn't really sure what you were asking about with this question. I think it would be very important for him to get all of his medical problems checked and to work to optomize his health. I suspect that this is very hard on him. Was there something specific you wanted to know?

CHF: He is in congestive heart failure and shouldn't be working until he is properly treated and his pleural effusions have resolved. Discuss this with his cardiologist.