Associations to deep?

patient.rb

class Patient < ActiveRecord::Base
	# Associations
	has_many :Requisitions

	# Functions
	def full_name
		return [given_name, family_name].join(' ')
	end
end

rails_console.rb

# This correctly finds the record
rt = RequisitionTest.find(323)

# This correctly displays the patients name
rt.Requisition.Patient.full_name

# This fails with undefined method `datereported' for #<ActiveRecord::Relation:0x00000000000000>
# However doing rt.RequisitionTestReports shows the datereported field with a date/time value
rt.RequisitionTestReports.datereported

# This also fails with undefined method `ReportType' for #<ActiveRecord::Relation:0x00000000000000>
rt.RequisitionTestReports.ReportType.name

# However this works
r = RequisitionTestReport.find(420)
r.ReportType.name

report_type.rb

class ReportType < ActiveRecord::Base
  # Associations
  has_many :RequisitionTestReports
end

requisition.rb

class Requisition < ActiveRecord::Base
	# Associations
	has_many :RequisitionTests
	belongs_to :Patient
end

requisition_test.rb

class RequisitionTest < ActiveRecord::Base
	# Associations
	belongs_to :Requisition
	has_many :RequisitionTestReports
end

requisition_test_report.rb

class RequisitionTestReport < ActiveRecord::Base
	# Associations
	belongs_to :RequisitionTest
	belongs_to :ReportType
end