diff --git a/lims_management/models/stock_lot.py b/lims_management/models/stock_lot.py
index 1c37cfc..5bbc29d 100644
--- a/lims_management/models/stock_lot.py
+++ b/lims_management/models/stock_lot.py
@@ -33,3 +33,27 @@ class StockLot(models.Model):
         string='Collected by',
         default=lambda self: self.env.user
     )
+
+    state = fields.Selection([
+        ('collected', 'Recolectada'),
+        ('received', 'Recibida en Laboratorio'),
+        ('in_process', 'En Proceso'),
+        ('analyzed', 'Analizada'),
+        ('stored', 'Almacenada'),
+        ('disposed', 'Desechada')
+    ], string='Estado', default='collected', tracking=True)
+
+    def action_receive(self):
+        self.write({'state': 'received'})
+
+    def action_start_analysis(self):
+        self.write({'state': 'in_process'})
+
+    def action_complete_analysis(self):
+        self.write({'state': 'analyzed'})
+
+    def action_store(self):
+        self.write({'state': 'stored'})
+
+    def action_dispose(self):
+        self.write({'state': 'disposed'})
diff --git a/lims_management/views/stock_lot_views.xml b/lims_management/views/stock_lot_views.xml
index 9c5587a..c5c0c78 100644
--- a/lims_management/views/stock_lot_views.xml
+++ b/lims_management/views/stock_lot_views.xml
@@ -14,6 +14,7 @@
                     <field name="collection_date"/>
                     <field name="collector_id"/>
                     <field name="container_type"/>
+                    <field name="state" decoration-success="state == 'analyzed'" decoration-info="state == 'in_process'" decoration-muted="state == 'stored' or state == 'disposed'" widget="badge"/>
                 </list>
             </field>
         </record>
@@ -24,6 +25,14 @@
             <field name="model">stock.lot</field>
             <field name="arch" type="xml">
                 <form string="Lab Sample">
+                    <header>
+                        <button name="action_receive" string="Recibir" type="object" class="oe_highlight" invisible="state != 'collected'"/>
+                        <button name="action_start_analysis" string="Iniciar Análisis" type="object" class="oe_highlight" invisible="state != 'received'"/>
+                        <button name="action_complete_analysis" string="Completar Análisis" type="object" class="oe_highlight" invisible="state != 'in_process'"/>
+                        <button name="action_store" string="Almacenar" type="object" invisible="state == 'stored' or state == 'disposed'"/>
+                        <button name="action_dispose" string="Desechar" type="object" invisible="state == 'disposed'"/>
+                        <field name="state" widget="statusbar" statusbar_visible="collected,received,in_process,analyzed,stored"/>
+                    </header>
                     <sheet>
                         <div class="oe_title">
                             <h1>
@@ -32,17 +41,20 @@
                         </div>
                         <group>
                             <group>
-                                <field name="patient_id"/>
-                                <field name="request_id"/>
+                                <field name="patient_id" readonly="state != 'collected'"/>
+                                <field name="request_id" 
+                                    readonly="state != 'collected'"
+                                    domain="[('is_lab_request', '=', True), '|', ('partner_id', '=', False), ('partner_id', '=', patient_id)]"/>
                                 <field name="product_id"
                                     string="Sample Type"
                                     domain="[('is_sample_type', '=', True)]"
-                                    options="{'no_create': True, 'no_create_edit': True}"/>
+                                    options="{'no_create': True, 'no_create_edit': True}"
+                                    readonly="state != 'collected'"/>
                             </group>
                             <group>
-                                <field name="collection_date"/>
-                                <field name="collector_id"/>
-                                <field name="container_type"/>
+                                <field name="collection_date" readonly="state != 'collected'"/>
+                                <field name="collector_id" readonly="state != 'collected'"/>
+                                <field name="container_type" readonly="state != 'collected'"/>
                             </group>
                         </group>
                     </sheet>