• WHERE AND HOW TO TAKE THE EXAM

• KIND OF CERTIFICATIONS OFFERED

• CERTIFICATION EXAM APPLICATION PROCESS

• TESTING DO’S AND DON’TS

• SCOPE OF THE HL7 V2 CONTROL EXAM

• QUESTION DISTRIBUTION BY TOPIC AREA

• PRACTICE QUESTIONS

• AVAILABLE STUDY RESOURCES

HL7 offers computer based testing (CBT) as its certification testing method. For CBT, you have the option to take your exam at:

one of 400 High-stakes Online Secure Testing (HOST) center locations worldwide, or

as an Online Proctored test from your own computer with Internet access and an external webcam meeting minimum requirements.

An online proctored test is offered at all HL7 Work Group Meetings and Educational Summits.

If your organization is interested in arranging certification testing at its facility, please contact Mary Ann Boyle, at Maryann@HL7.org or phone (734) 677-7777.

Certifications in the following are offered by HL7:

Hl7 v2 Control

HL7 v3 Reference Information Model

HL7 v3 Clinical Document Architecture

Application Process Complete the certification application online to start the

process.

The application process is the same whether you take the exam in person or electronically at Kryterion testing centers or online.

Allow up to 10 business days to process your application.

Bring a photo id to the test. No reading or writing materials, except those provided by the instructor, are allowed during the test. Pencils will be provided.

Mobile phones, messaging devices, and pagers must be turned off (not just silenced) during the test. Use of such devices during the test may result in disqualification.

If you need to be reachable for emergencies while you are taking the test, please inform personnel at the test site.

After the test, you are not allowed to discuss the contents of the test with others.

Results will be emailed immediately upon completion of the test to the address that you designated when you registered for the examination.

A Certificate is also immediately emailed to qualifying individuals.

HL7 2.7 Chapters 2, 2A, and 2B Chapter 2: Control

Chapter 2A: DataTypes

Chapter 2B: Conformance

There are 70 questions on the exam.

Candidates will have 2 hours to complete the exam.

Candidates must score at least 70% (correctly answer a minimum of 49 questions) to pass the exam.

The questions are multiple choice and there is no penalty for guessing incorrectly.

20% Conceptual Approach and Framework.

36% Message Construction and Processing Rules.

12% Control Segments and Message Types

21% Datatypes

11% Conformance

2.2 INTRODUCTION .......................................................................................................................................... 3

2.3 CONCEPTUAL APPROACH ....................................................................................................................... 3

2.3.1 TRIGGER EVENTS ...................................................................................................................................... 3 2.3.2 ACKNOWLEDGMENTS: ORIGINAL MODE ................................................................................................... 4 2.3.3 ACKNOWLEDGMENTS: ENHANCED MODE.................................................................................................. 4 2.3.4 QUERIES ................................................................................................................................................... 5

2.4 COMMUNICATIONS ENVIRONMENT.................................................................................................... 5

2.5 MESSAGE FRAMEWORK .......................................................................................................................... 6

2.5.1 MESSAGES ................................................................................................................................................ 6 2.5.2 SEGMENTS AND SEGMENT GROUPS ........................................................................................................... 6 2.5.3 FIELDS ...................................................................................................................................................... 7 2.5.4 MESSAGE DELIMITERS ............................................................................................................................ 10

a) 2.5.5 Length 10

10 to 15 Questions 20% Of the Exam

Which of the following characters is the suggested HL7 2.x Field Separator?

A. |

B. ^

C. &

D. ~

E. \

Which of the following is NOT a possible designation of optionality for a field within a segment in the segment attribute tables of the HL7 2.7 standard?

A. R - Required

B. O - Optional

C. C - Conditional on the trigger event or on some other field(s)

D. Z - User defined

E. B - Left in for Backward compatibility with previous versions of HL7

2.6 MESSAGE CONSTRUCTION RULES ..................................................................................................... 13

2.7 USE OF ESCAPE SEQUENCES IN TEXT FIELDS................................................................................ 18

2.8 VERSION COMPATIBILITY DEFINITION ........................................................................................... 21

2.9 MESSAGE PROCESSING RULES ........................................................................................................... 25

2.10 SPECIAL HL7 PROTOCOLS .................................................................................................................... 29

2.11 LOCAL EXTENSION ................................................................................................................................. 41

2.13 ACKNOWLEDGMENT MESSAGES ....................................................................................................... 46

2.14 MESSAGE CONTROL SEGMENTS ........................................................................................................ 46

2.16 MISCELLANEOUS HL7 TABLES USED ACROSS ALL CHAPTERS ................................................ 74

25 to 30 Questions 36% Of the Exam

If the data type definition calls for a component to be broken into subcomponents, which of the following rules are used?

I. If more than one subcomponent is included, they are separated by the subcomponent separator.

II. Subcomponents that are not present are represented by the characters "".

III. A subcomponent that is present but null is represented by including no characters in the subcomponent.

IV. Subcomponents that are present but null at the end of a component need not be represented by subcomponent separators.

A. I., II., III., and IV.

B. I., II., and III. only

C. I. and IV. only

D. I. only

E. II., III., and IV. only

The original mode acknowledgment protocol is equivalent to the enhanced acknowledgment protocol with which of the following field values?

A. Just the MSH-15-accept acknowledgment type equal to "AL", the MSH-16-application acknowledgment type doesn't matter.

B. Just the MSH-16-application acknowledgment type equal to "AL", the MSH-15-accept acknowledgment type doesn't matter.

C. The MSH-15-accept acknowledgment type equal to "NE" and the MSH-16-application acknowledgment type equal to "AL".

D. The MSH-15-accept acknowledgment type equal to "AL" and the MSH-16-application acknowledgment type equal to "NE".

E. The MSH-15-accept acknowledgment type equal to "NE", the MSH-16-application acknowledgment type doesn't matter.

2.14 MESSAGE CONTROL SEGMENTS ........................................................................................................ 46

2.14.1 ADD - ADDENDUM SEGMENT ................................................................................................................. 47 2.14.2 BHS - BATCH HEADER SEGMENT ............................................................................................................. 47 2.14.3 BTS - BATCH TRAILER SEGMENT ............................................................................................................. 49 2.14.4 DSC - CONTINUATION POINTER SEGMENT ............................................................................................... 50 2.14.5 ERR - ERROR SEGMENT .......................................................................................................................... 50 2.14.6 FHS - FILE HEADER SEGMENT ................................................................................................................. 54 2.14.7 FTS - FILE TRAILER SEGMENT ................................................................................................................. 56 2.14.8 MSA - MESSAGE ACKNOWLEDGMENT SEGMENT ..................................................................................... 56 2.14.9 MSH - MESSAGE HEADER SEGMENT ....................................................................................................... 57 2.14.10 NTE - NOTES AND COMMENTS SEGMENT ................................................................................................ 65 2.14.11 OVR – OVERRIDE SEGMENT ................................................................................................................... 67 2.14.12 SFT – SOFTWARE SEGMENT .................................................................................................................... 71 2.14.13 UAC - USER AUTHENTICATION CREDENTIAL SEGMENT ......................................................................... 73

2.17 SAMPLE CONTROL MESSAGES ............................................................................................................ 75

2.17.1 GENERAL ACKNOWLEDGMENT ............................................................................................................... 75 2.17.2 GENERAL ACKNOWLEDGEMENT, ERROR RETURN .................................................................................... 75 2.17.3 MESSAGE USING SEQUENCE NUMBER: PROTOCOL ................................................................................... 75 2.17.4 MESSAGE FRAGMENTATION .................................................................................................................... 76 2.17.5 ACKNOWLEDGEMENT MESSAGE USING ORIGINAL MO DE PROCESSING .................................................... 79 2.17.6 ACKNOWLEDGEMENT MESSAGE USING ENHANCED MODE PROCESSING .................................................. 79

5 to 10 Questions 12% Of the Exam

The segment FHS contains which of the following fields?

A. Batch Creation Date/Time

B. Batch Control ID

C. File Batch Count

D. File Encoding Characters

E. File Trailer Comment

What acknowledgment code should a system return as an accept acknowledgment if the message cannot be accepted because of a sequence number error?

A. CA

B. CR

C. CE

D. CX

E. None of the above.

Data type Data Type Name Data type Data Type Name Data type Data Type Name

AD Address FN Family name RCD Row column definition

AUI Authorization information FT Formatted text RFR Reference range

CCD Charge code and date GTS General timing specif ication RI Repeat interval

CCP Channel calibration parameters HD Hierarchic designator RMC Room coverage

CD Channel definition ICD Insurance certif ication definition RP Reference pointer

CE Coded element ID Coded values for HL7 tables RPT Repeat pattern

CF Coded element w ith formatted values IS Coded value for user-defined tables SAD Street Address

CK Composite ID w ith check digit JCC Job code/class SCV Scheduling class value pair

CM Composite LA1 Location w ith address variation 1 SI Sequence ID

CN Composite ID number and name LA2 Location w ith address variation 2 SN Structured numeric

CNE Coded w ith no exceptions MA Multiplexed array SNM String of telephone number digits

CNN Composite ID number and name simplif ied MO Money SPD Specialty description

CP Composite price MOC Money and charge code SPS Specimen source

CQ Composite quantity w ith units MOP Money or percentage SRT Sort order

CSU Channel sensitivity and units MSG Message type ST String data

CWE Coded w ith exceptions NA Numeric array TM Time

CX Extended composite ID w ith check digit NDL Name w ith date and location TN Telephone number

DDI Daily deductible information NM Numeric TQ Timing/quantity

DIN Date and institution name NR Numeric range TS Time stamp

DLD Discharge to location and date OCD Occurrence code and date TX Text data

DLN Driver's license number OSD Order sequence definition UVC UB value code and amount

DLT Delta OSP Occurrence span code and date VH Visiting hours

DR Date/time range PIP Practitioner institutional privileges VID Version identif ier

DT Date PL Person location VR Value range

DTM Date/time PLN Practitioner license or other ID number WVI Channel Identif ier

DTN Day type and number PN Person name WVS Waveform source

ED Encapsulated data PPN Performing person time stamp XAD Extended address

EI Entity identif ier PRL Parent result link XCN Extended composite ID number and name for persons

EIP Entity identif ier pair PT Processing type XON Extended composite name and ID number for organizations

ELD Error location and description PTA Policy type and amount XPN Extended person name

ERL Error location QIP Query input parameter list

FC Financial class QSC Query selection criteria

XTN Extended telecommunications number

15 to 20 Questions 21% Of the Exam

What data type is the following field? |\.in+4\\.ti-4\ 1. The cardiomediastinalsilhouette is now within normal limits.^\.sp\\.ti-4\ 2. Lung fields show minimal ground glass appearance.^\.sp\\.ti-4\ 3. A loop of colon visible in the left upper quadrant is distinctly abnormal with the appearance of mucosal effacement suggesting colitis.\.in-4\|A. HT - Hypertext Markup Language B. FT - Formatted text C. RT - Rich Text D. TX - Text Data E. XM - Extended Markup Language

What is the specified maximum field length for a field of data type IS?

A. 20

B. 64

C. 199

D. 65536 (64K)

E. The maximum length may vary depending on the longest code in the code set.

2.B CONFORMANCE USING MESSAGE PROFILES ............................................... 2-206

2.B.1 MESSAGE PROFILE ............................................................................................................................. 2-209

2.B.2 USE CASE MODEL............................................................................................................................... 2-209

2.B.3 DYNAMIC DEFINITION ........................................................................................................................ 2-210

2.B.4 STATIC DEFINITION ............................................................................................................................ 2-212

2.B.5 TABLE DEFINITION ............................................................................................................................. 2-214

2.B.6 PROFILE TYPE .................................................................................................................................... 2-214

2.B.7 STATIC DEFINITION CONCEPTS ........................................................................................................... 2-216

2.B.8 STATIC DEFINITION - MESSAGE LEVEL ................................................................................................ 2-221

2.B.9 STATIC DEFINITION - FIELD LEVEL ...................................................................................................... 2-224

2.B.10 MESSAGE PROFILE DOCUMENT .......................................................................................................... 2-225

2.B.11 TOOLS ............................................................................................................................................... 2-226

2.B.12 MESSAGE PROFILE DOCUMENT DEFINITION ....................................................................................... 2-226

5 to 10 Questions 11% Of the Exam

If Field 4, “Observation Sub-ID”, is transmitted in a segment formatted according to the OBX segment definition in Figure I above, the receiving conformant application:

A. May ignore the field if it is sent, or may raise an application error

B. Must accept (pending further processing of the field contents)

C. Must reject

D. Should truncate the field to a length of 250 characters

E. May accept if and only if it is accompanied by at least one occurrence of Field 3, “Observation Identifier”

Which of the following fields may be omitted from a segment formatted according to the OBX segment definition in Figure I above?

A. Field 1, “Set ID - OBX”

B. Field 2, “Value Type”

C. Field 3, “Observation Identifier”

D. Field 5, “Observation Value”

E. Field 6, “Units”

HL7 v2.7 Standard

HL7 v2.7 Certification Test Study Guide

HL7 v2.7 Chapter 2 Control (Practice Exam)

AbdulMalik.Shakir@Hi3Solutions.com

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