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Background: Mood disorders also known as affective disorders include unipolar and bipolar disorders. Manic-depressive disorder, more contemporary identified as bipolar disorder, is a chronic and complex disorder. Mood stabilizers and antipsychotics are the mainstay of acute treatment for bipolar mania and depression. Lithium is the gold standard for treating bipolar disorder. Methodology: A narrative review was carried out through various databases from January 2009 to November 2021; the search and selection of articles was carried out in journals indexed in English. Keywords were used: Thyroid; lithium; bipolar; Thyroiditis; Goiter; Hypothyroidism. Results: Lithium is abundantly present at the thyroid level, the uptake of iodine being reduced. Causing as a collateral effect the increase in TSH, increasing uptake. These various alterations caused by lithium can lead to developing goiter and hypothyroidism, being the most frequent. Conclusions: This review offers an updated approach to the pathophysiological mechanisms caused by lithium as well as the main alterations produced by it.

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Carbon monoxide poisoning is a dangerous cause of hospital admission and mortality around the world due to its ability to enter the body and bind to heme groups. Thus, it is important to carry out a correct management plan for this type of patient, in order to avoid and prevent the development of severe systemic complications and even death, for which a review of diagnostic techniques is carried out and treatment of this scenario and its effectiveness in terms of the evolution of the patient.

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