diff --git a/CLAUDE.md b/CLAUDE.md
index 182134f..48df957 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -40,6 +40,17 @@ After successful installation/update, the instance must remain active for user v
 4. Only proceed to next task if no errors are found
 5. If errors are found, fix them before continuing
 
+### Development Workflow per Task
+When implementing issues with multiple tasks, follow this workflow for EACH task:
+1. **Stop instance**: `docker-compose down -v`
+2. **Implement the task**: Make code changes
+3. **Start instance**: `docker-compose up -d` (timeout: 300000ms)
+4. **Validate logs**: Check for errors in initialization
+5. **Commit & Push**: `git add -A && git commit -m "feat(#X): Task description" && git push`
+6. **Comment on issue**: Update issue with task completion
+7. **Mark task completed**: Update todo list
+8. **Proceed to next task**: Only if no errors found
+
 ### Database Operations
 
 #### Direct PostgreSQL Access
diff --git a/lims_management/__manifest__.py b/lims_management/__manifest__.py
index 27c5248..7ce03dc 100644
--- a/lims_management/__manifest__.py
+++ b/lims_management/__manifest__.py
@@ -23,6 +23,7 @@
         'data/ir_sequence.xml',
         'data/product_category.xml',
         'data/sample_types.xml',
+        'data/lims_sequence.xml',
         'views/partner_views.xml',
         'views/analysis_views.xml',
         'views/sale_order_views.xml',
diff --git a/lims_management/data/lims_sequence.xml b/lims_management/data/lims_sequence.xml
new file mode 100644
index 0000000..8179dbc
--- /dev/null
+++ b/lims_management/data/lims_sequence.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <data noupdate="1">
+        
+        <!-- Secuencia para lims.test -->
+        <record id="seq_lims_test" model="ir.sequence">
+            <field name="name">Secuencia de Pruebas de Laboratorio</field>
+            <field name="code">lims.test</field>
+            <field name="prefix">LAB-%(year)s-</field>
+            <field name="padding">5</field>
+            <field name="company_id" eval="False"/>
+        </record>
+        
+    </data>
+</odoo>
\ No newline at end of file
diff --git a/lims_management/models/__init__.py b/lims_management/models/__init__.py
index 5b09e9e..a49eb6c 100644
--- a/lims_management/models/__init__.py
+++ b/lims_management/models/__init__.py
@@ -4,3 +4,5 @@ from . import product
 from . import partner
 from . import sale_order
 from . import stock_lot
+from . import lims_test
+from . import lims_result
diff --git a/lims_management/models/__pycache__/__init__.cpython-312.pyc b/lims_management/models/__pycache__/__init__.cpython-312.pyc
index c0fed3a..f3a9a8e 100644
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diff --git a/lims_management/models/__pycache__/product.cpython-312.pyc b/lims_management/models/__pycache__/product.cpython-312.pyc
index 59f71a2..a2b65f2 100644
Binary files a/lims_management/models/__pycache__/product.cpython-312.pyc and b/lims_management/models/__pycache__/product.cpython-312.pyc differ
diff --git a/lims_management/models/__pycache__/sale_order.cpython-312.pyc b/lims_management/models/__pycache__/sale_order.cpython-312.pyc
index 8e54302..50afd7a 100644
Binary files a/lims_management/models/__pycache__/sale_order.cpython-312.pyc and b/lims_management/models/__pycache__/sale_order.cpython-312.pyc differ
diff --git a/lims_management/models/__pycache__/stock_lot.cpython-312.pyc b/lims_management/models/__pycache__/stock_lot.cpython-312.pyc
index 051c734..5556171 100644
Binary files a/lims_management/models/__pycache__/stock_lot.cpython-312.pyc and b/lims_management/models/__pycache__/stock_lot.cpython-312.pyc differ
diff --git a/lims_management/models/lims_result.py b/lims_management/models/lims_result.py
new file mode 100644
index 0000000..a123c25
--- /dev/null
+++ b/lims_management/models/lims_result.py
@@ -0,0 +1,124 @@
+# -*- coding: utf-8 -*-
+from odoo import models, fields, api, _
+from odoo.exceptions import ValidationError
+import logging
+
+_logger = logging.getLogger(__name__)
+
+
+class LimsResult(models.Model):
+    _name = 'lims.result'
+    _description = 'Resultado de Prueba de Laboratorio'
+    _rec_name = 'display_name'
+    _order = 'test_id, sequence'
+
+    display_name = fields.Char(
+        string='Nombre',
+        compute='_compute_display_name',
+        store=True
+    )
+    
+    test_id = fields.Many2one(
+        'lims.test',
+        string='Prueba',
+        required=True,
+        ondelete='cascade'
+    )
+    
+    # Por ahora, estos campos básicos
+    parameter_name = fields.Char(
+        string='Parámetro',
+        required=True
+    )
+    
+    sequence = fields.Integer(
+        string='Secuencia',
+        default=10
+    )
+    
+    # TODO: Implementar parameter_id cuando exista lims.test.parameter
+    # parameter_id = fields.Many2one(
+    #     'lims.test.parameter',
+    #     string='Parámetro'
+    # )
+    
+    value_numeric = fields.Float(
+        string='Valor Numérico'
+    )
+    
+    value_text = fields.Char(
+        string='Valor de Texto'
+    )
+    
+    value_selection = fields.Selection(
+        [],  # Por ahora vacío
+        string='Valor de Selección'
+    )
+    
+    is_out_of_range = fields.Boolean(
+        string='Fuera de Rango',
+        compute='_compute_is_out_of_range',
+        store=True
+    )
+    
+    notes = fields.Text(
+        string='Notas del Técnico'
+    )
+    
+    # Campos para rangos normales (temporal)
+    normal_min = fields.Float(
+        string='Valor Normal Mínimo'
+    )
+    
+    normal_max = fields.Float(
+        string='Valor Normal Máximo'
+    )
+    
+    unit = fields.Char(
+        string='Unidad'
+    )
+    
+    @api.depends('test_id', 'parameter_name')
+    def _compute_display_name(self):
+        """Calcula el nombre a mostrar."""
+        for record in self:
+            if record.test_id and record.parameter_name:
+                record.display_name = f"{record.test_id.name} - {record.parameter_name}"
+            else:
+                record.display_name = record.parameter_name or _('Nuevo')
+    
+    @api.depends('value_numeric', 'normal_min', 'normal_max')
+    def _compute_is_out_of_range(self):
+        """Determina si el valor está fuera del rango normal."""
+        for record in self:
+            if record.value_numeric and (record.normal_min or record.normal_max):
+                if record.normal_min and record.value_numeric < record.normal_min:
+                    record.is_out_of_range = True
+                elif record.normal_max and record.value_numeric > record.normal_max:
+                    record.is_out_of_range = True
+                else:
+                    record.is_out_of_range = False
+            else:
+                record.is_out_of_range = False
+    
+    @api.constrains('value_numeric', 'value_text', 'value_selection')
+    def _check_single_value_type(self):
+        """Asegura que solo un tipo de valor esté lleno."""
+        for record in self:
+            filled_values = 0
+            if record.value_numeric:
+                filled_values += 1
+            if record.value_text:
+                filled_values += 1
+            if record.value_selection:
+                filled_values += 1
+            
+            if filled_values > 1:
+                raise ValidationError(
+                    _('Solo se puede ingresar un tipo de valor (numérico, texto o selección) por resultado.')
+                )
+            
+            if filled_values == 0:
+                raise ValidationError(
+                    _('Debe ingresar al menos un valor para el resultado.')
+                )
\ No newline at end of file
diff --git a/lims_management/models/lims_test.py b/lims_management/models/lims_test.py
new file mode 100644
index 0000000..cdd8464
--- /dev/null
+++ b/lims_management/models/lims_test.py
@@ -0,0 +1,207 @@
+# -*- coding: utf-8 -*-
+from odoo import models, fields, api, _
+from odoo.exceptions import UserError
+import logging
+
+_logger = logging.getLogger(__name__)
+
+
+class LimsTest(models.Model):
+    _name = 'lims.test'
+    _description = 'Prueba de Laboratorio'
+    _inherit = ['mail.thread', 'mail.activity.mixin']
+    _rec_name = 'name'
+    _order = 'create_date desc'
+
+    name = fields.Char(
+        string='Código de Prueba',
+        required=True,
+        readonly=True,
+        copy=False,
+        default='Nuevo'
+    )
+    
+    sale_order_line_id = fields.Many2one(
+        'sale.order.line',
+        string='Línea de Orden',
+        required=True,
+        ondelete='restrict'
+    )
+    
+    patient_id = fields.Many2one(
+        'res.partner',
+        string='Paciente',
+        related='sale_order_line_id.order_id.partner_id',
+        store=True,
+        readonly=True
+    )
+    
+    product_id = fields.Many2one(
+        'product.product',
+        string='Análisis',
+        related='sale_order_line_id.product_id',
+        store=True,
+        readonly=True
+    )
+    
+    sample_id = fields.Many2one(
+        'stock.lot',
+        string='Muestra',
+        domain="[('is_lab_sample', '=', True)]",
+        tracking=True
+    )
+    
+    state = fields.Selection([
+        ('draft', 'Borrador'),
+        ('in_process', 'En Proceso'),
+        ('result_entered', 'Resultado Ingresado'),
+        ('validated', 'Validado'),
+        ('cancelled', 'Cancelado')
+    ], string='Estado', default='draft', tracking=True)
+    
+    validator_id = fields.Many2one(
+        'res.users',
+        string='Validador',
+        readonly=True,
+        tracking=True
+    )
+    
+    validation_date = fields.Datetime(
+        string='Fecha de Validación',
+        readonly=True,
+        tracking=True
+    )
+    
+    technician_id = fields.Many2one(
+        'res.users',
+        string='Técnico',
+        default=lambda self: self.env.user,
+        tracking=True
+    )
+    
+    require_validation = fields.Boolean(
+        string='Requiere Validación',
+        compute='_compute_require_validation',
+        store=True
+    )
+    
+    result_ids = fields.One2many(
+        'lims.result',
+        'test_id',
+        string='Resultados'
+    )
+    
+    notes = fields.Text(
+        string='Observaciones'
+    )
+    
+    company_id = fields.Many2one(
+        'res.company',
+        string='Compañía',
+        required=True,
+        default=lambda self: self.env.company
+    )
+    
+    @api.depends('company_id')
+    def _compute_require_validation(self):
+        """Calcula si la prueba requiere validación basado en configuración."""
+        for record in self:
+            # Por ahora, siempre requiere validación
+            # TODO: Implementar cuando se agregue res.config.settings
+            record.require_validation = True
+    
+    @api.model_create_multi
+    def create(self, vals_list):
+        """Genera código único al crear."""
+        for vals in vals_list:
+            if vals.get('name', 'Nuevo') == 'Nuevo':
+                vals['name'] = self.env['ir.sequence'].next_by_code('lims.test') or 'Nuevo'
+        return super().create(vals_list)
+    
+    def action_start_process(self):
+        """Inicia el proceso de análisis."""
+        self.ensure_one()
+        if self.state != 'draft':
+            raise UserError(_('Solo se pueden procesar pruebas en estado borrador.'))
+        if not self.sample_id:
+            raise UserError(_('Debe asignar una muestra antes de iniciar el proceso.'))
+        
+        self.write({
+            'state': 'in_process',
+            'technician_id': self.env.user.id
+        })
+        
+        # Log en el chatter
+        self.message_post(
+            body=_('Prueba iniciada por %s') % self.env.user.name,
+            subject=_('Proceso Iniciado')
+        )
+        
+        return True
+    
+    def action_enter_results(self):
+        """Marca como resultados ingresados."""
+        self.ensure_one()
+        if self.state != 'in_process':
+            raise UserError(_('Solo se pueden ingresar resultados en pruebas en proceso.'))
+        
+        if not self.result_ids:
+            raise UserError(_('Debe ingresar al menos un resultado.'))
+        
+        self.state = 'result_entered'
+        
+        # Log en el chatter
+        self.message_post(
+            body=_('Resultados ingresados por %s') % self.env.user.name,
+            subject=_('Resultados Ingresados')
+        )
+        
+        return True
+    
+    def action_validate(self):
+        """Valida los resultados (solo administradores)."""
+        self.ensure_one()
+        if self.state != 'result_entered':
+            raise UserError(_('Solo se pueden validar pruebas con resultados ingresados.'))
+        
+        # TODO: Verificar permisos cuando se implemente seguridad
+        
+        self.write({
+            'state': 'validated',
+            'validator_id': self.env.user.id,
+            'validation_date': fields.Datetime.now()
+        })
+        
+        # Log en el chatter
+        self.message_post(
+            body=_('Resultados validados por %s') % self.env.user.name,
+            subject=_('Resultados Validados')
+        )
+        
+        return True
+    
+    def action_cancel(self):
+        """Cancela la prueba."""
+        self.ensure_one()
+        if self.state == 'validated':
+            raise UserError(_('No se pueden cancelar pruebas validadas.'))
+        
+        self.state = 'cancelled'
+        
+        # Log en el chatter
+        self.message_post(
+            body=_('Prueba cancelada por %s') % self.env.user.name,
+            subject=_('Prueba Cancelada')
+        )
+        
+        return True
+    
+    def action_draft(self):
+        """Regresa a borrador."""
+        self.ensure_one()
+        if self.state not in ['cancelled']:
+            raise UserError(_('Solo se pueden regresar a borrador pruebas canceladas.'))
+        
+        self.state = 'draft'
+        
+        return True
\ No newline at end of file
diff --git a/lims_management/security/ir.model.access.csv b/lims_management/security/ir.model.access.csv
index 9d946ac..b2d9cb9 100644
--- a/lims_management/security/ir.model.access.csv
+++ b/lims_management/security/ir.model.access.csv
@@ -2,3 +2,5 @@ id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
 access_lims_analysis_range_user,lims.analysis.range.user,model_lims_analysis_range,base.group_user,1,1,1,1
 access_sale_order_receptionist,sale.order.receptionist,sale.model_sale_order,group_lims_receptionist,1,1,1,0
 access_stock_lot_user,stock.lot.user,stock.model_stock_lot,base.group_user,1,1,1,1
+access_lims_test_user,lims.test.user,model_lims_test,base.group_user,1,1,1,1
+access_lims_result_user,lims.result.user,model_lims_result,base.group_user,1,1,1,1