Introduction The case study provided about Mr. Issler shows that he has been suffering from heart problems for some time. It is evident that he lacks proper family care back at home. He is currently under the care of his daughter-in-law who moved in with him a few months ago. The most appropriate nursing concept that is applicable in his case is Roy Adaptation Model. This theory holds that patients’ adaptation is based on the interaction with the environment (Roy, 2013). Choice, conscious awareness, and self-reflection all help in the creation of environmental integration. Mr. Issler must understand that the medical condition of his heart is very delicate, especially after the confirmation from the laboratory tests. He has to integrate with the social environment to find best ways of managing his complication. Plan of Care for the Patient Introduction According to Kaur and Mahal (2013), people suffering from coronary diseases need proper plan of care because of the unpredictability of a possible heart attack. Mr. Issler has congestive heart failure (CHF) and a history of deep vein thrombosis (DVT). These are serious complication that may lead to heart attack at any moment, especially if the patient fails to maintain a given lifestyle. In this plan, the patient will play a central role in ensuring that he remains in good health, just as stated in the above theory. The deep vein thrombosis may cause blockade of blood in delicate body organs that may lead to serious medical problems if care is not taken as soon as possible. For this reason, it will be necessary for the patient to maintain regular exercise. Regular exercise will help burn extra calories in the body that may cause problems to the patient. It will also help to improve the health status of the heart (Judd, Sitzman, & Davis, 2010). The delicate nature of the patient’s heart- caused by congestive heart failure- demands that the exercises must be regulated by an expert. Mr. Issler will, therefore, need an instructor who will define the kind of exercises that he should embrace. This may include slight jogging or just walking for a given distance every morning before going to work. The patient will also need to be disciplined when it comes to his food intake. Fitzpatrick and Kazer (2012) warn that individuals who have heart problems may face serious danger if they fail to adhere to a given diet at all times. All types of food with high calories should be avoided by this patient. This includes red meat and excess carbohydrates. Finally, Mr. Issler may need to resolve his relationship with his son given that he is the only family member who can be genuinely concerned about his health. Currently, the patient is staying with his daughter-in-law who moved in with him a month ago. She is no longer married to his son, a fact that means the family bond is already broken. Morally, he should not have moved in with her. His delicate heart condition may not permit him to stressful environments such as a fight with the son. Family members also have a role to play in this care plan. Maintaining a healthy lifestyle does not rule out a possibility that the patient may experience heart attack at any moment. W