RRBN Second Professional Exam Past Questions And Answers 

RRBN Second Professional Exam Past Questions And Answers

If you are reading this, you are likely standing at the precipice of your career. The RRBN Second Professional Examination is not merely an academic hurdle; it is the definitive checkpoint that separates a student radiographer from a provisional intern.

 Manny Spark have mentored countless students across Nigeria—from UNEC to UNILAG, from Bayero University to UNICAL. I know the anxiety that keeps you up at night. The syllabus is vast, covering everything from the physics of the atom to the positioning of the zygomatic arch.

“Do not study to pass; study to understand. When you understand, passing becomes a byproduct.” — Dr. Manny

This article is designed to be a comprehensive repository. We will go beyond simple answers and dive into the logic required to satisfy the strict examiners of the Radiographers Registration Board of Nigeria.

Need personal guidance?

Reach out to me directly at Manny Spark:

📞 08039822082 or 08056553153

The RRBN Exam Landscape: Locations and Logistics

Understanding the terrain is the first step in warfare. In Nigeria, the RRBN exams are typically zoned. Knowing where you are going helps reduce cortisol levels on exam day.

The Abuja Head Office (The Administrative Core)

If your center is in Abuja, you are likely heading to the Federal Secretariat Complex.

• Location: Phase 1, Annex III, Block B, 4th Floor, Ahmadu Bello Way, Central Business District, Abuja.

• The Vibe: This is a high-security, formal government zone.

  • Logistics: Parking is difficult. Drop-off is advised.

  • Atmosphere: Strict. Punctuality is non-negotiable. If your Viva is here, ensure your suit is sharp. The examiners here are often senior directors and board members.

The Lagos Zonal Office (The Hustle Hub)

For students in the Southwest, Yaba is your destination.

• Location: Murtala Muhammed Way, Central Medical Library Compound, Yaba, Lagos.

• The Vibe: Yaba is the tech and academic heartbeat of Lagos. It is noisy and chaotic outside, but the RRBN office is a sanctuary of seriousness.

  • Logistics: Traffic on Murtala Muhammed Way is notorious. If your exam is at 8:00 AM, be at Yaba by 7:00 AM.

  • Facilities: Often used for registration and smaller Viva sessions. Larger written exams may be held at LUTH (Idi-Araba) or UNILAG, so check your slip.

Module 1: Radiographic Techniques (Detailed Q&A)

This section usually carries the highest weight in the written papers.

Q1: Describe the modifications required for a lateral projection of the cervical spine in a trauma patient (C-Spine immobilization).

Detailed Answer:

In a trauma setting, the rule is primum non nocere (first, do no harm). You never remove the cervical collar until a radiologist clears the initial images.

1. Patient Position: Supine on the trauma trolley. Do not move the head or neck.

2. Cassette Placement: Place the detector vertically against the patient’s shoulder (top edge 2 inches above the ear).

3. Centering: Horizontal beam directed to C4 (level of the thyroid cartilage).

4. Technical Factor: 180cm SID (Source-to-Image Distance) is crucial here.

   • Why? To reduce magnification caused by the air gap (since the shoulder prevents the cassette from touching the neck).

5. Breathing: Expiration (to depress shoulders).

6. Troubleshooting: If C7/T1 is not visualized, a Swimmer’s View is required.

Q2: Differentiate between the radiographic appearance of the ‘Apple Core’ lesion and the ‘Bird’s Beak’ sign.

Q3: Explain the ‘Judet Views’ for the Acetabulum.

Answer:

Standard AP Pelvis often hides acetabular fractures. Judet views are 45-degree obliques.

1. Internal Oblique (Obturator View): Patient rolled 45 degrees away from the affected side. Highlights the Ilio-pubic column and the Posterior acetabular lip.

2. External Oblique (Iliac View): Patient rolled 45 degrees towards the affected side. Highlights the Ilio-ischial column and the Anterior acetabular lip.

Module 2: Radiation Physics and Protection

This is where many students fail. The RRBN demands that you understand the mathematics of the beam.

Q1: Explain the Photoelectric Effect and its significance in diagnostic imaging.

Answer:

The Photoelectric effect is the primary interaction responsible for contrast in the image (and patient dose).

• Mechanism: An incident X-ray photon interacts with an inner shell electron (K-shell). The photon surrenders all its energy to eject the electron.

• Equation:
  $$E_k = hf – E_b$$

   

  Where $E_k$ is the kinetic energy of the photoelectron, $h$ is Planck’s constant, $f$ is frequency, and $E_b$ is the binding energy.

• Probability: It is proportional to the cube of the atomic number ($Z^3$) and inversely proportional to the cube of energy ($E^3$).

• Significance: Because bone has a high $Z$ (Calcium), it absorbs more radiation via this effect than soft tissue, creating the white appearance on the film.

Calculate the new mAs required if the SID is changed from 100cm to 180cm, given an initial mAs of 20.

Answer:

Module 3: Radiographic Pathology and Pattern Recognition

In the exam, you may be described an image or asked to list differential diagnoses.

Q1: What are the radiographic signs of Pulmonary Tuberculosis (TB)?

Answer:

TB is highly prevalent in Nigeria, making this a staple question.

1. Location: Predominantly in the apices (upper lobes) due to higher oxygen tension.

2. Consolidation: Patchy opacities.

3. Cavitation: Thick-walled cavities often seen in post-primary TB.

4. Fibrosis/Calcification: Seen in healed TB.

5. Miliary TB: “Millet seed” appearance—tiny, diffuse 1-2mm nodules scattered throughout both lung fields.

Q2: Describe the Salter-Harris Classification of fractures.

This classification is used for fractures involving the epiphyseal plate (growth plate) in children. Remember the mnemonic SALTR:

• Type I (S): Slipped. Fracture through the physis (growth plate) only.

• Type II (A): Above. Fracture through physis and Metaphysis (Most common).

• Type III (L): Lower. Fracture through physis and Epiphysis.

• Type IV (T): Through. Through Metaphysis, Physis, and Epiphysis.

• Type V (R): Rammed. Compression/Crush injury of the physis (Worst prognosis).

6. Module 4: Equipment, CT, and MRI Technologies

Q1: Discuss the principle of the CT Hounsfield Unit (HU).

Answer:

The Hounsfield Unit represents the density of tissue relative to water.

• Water: Defined as 0 HU.

• Air: -1000 HU.

• Bone: +400 to +1000 HU.

• Soft Tissue: +40 to +80 HU.

Q2: What is the ‘Quench’ in MRI?

Answer:

A Quench is the sudden loss of superconductivity in the MRI magnet.

• Mechanism: The liquid helium boils off rapidly, expanding into gas.

• Danger: This displaces oxygen in the room, risking asphyxiation for the patient and staff.

• When to use: ONLY in life-threatening emergencies (e.g., a patient is pinned to the magnet by a ferromagnetic object like a wheelchair).

Module 5: Patient Care and Pharmacology

Q1: Management of a severe Anaphylactic reaction to contrast media.

Answer:

You must know the ABCD protocol.

1. Stop the injection immediately.

2. Call for help (Code Blue).

3. Airway: Maintain patency.

4. Drug of Choice: Adrenaline (Epinephrine).

   • Dose: 0.5ml of 1:1000 solution IM (Intramuscular).

5. Fluids: Rapid IV saline.

6. Adjuncts: Hydrocortisone (Steroid) and Antihistamines (Promethazine).

Q2: What are the normal ranges for vital signs in an adult?

• Blood Pressure: 120/80 mmHg.

• Heart Rate: 60 – 100 bpm.

• Respiratory Rate: 12 – 20 breaths/min.

• Temperature: 36.5°C – 37.5°C.

• SpO2: 95% – 100%.

The Viva Voce Survival Guide: Answering the Oral Defense

The Viva is often the most feared part of the RRBN exams. It is an oral interview where you defend your knowledge.

The Golden Rules of the Viva:

1. Entrance & Etiquette:

   • Knock before entering.

   • Greet the panel (“Good morning, distinct examiners”).

   • Do not sit until asked.

   • Dress Code: Men should wear a dark suit and tie. Ladies should wear formal corporate attire (skirt suits or trouser suits). Avoid flashy jewelry.

2. Answering Technique:

   • Listen: Listen to the entire question. Do not interrupt.

   • Pause: Take 2 seconds to formulate your answer.

   • Structure: “The procedure for IVU involves three phases: Preparation, Procedure, and Aftercare. Starting with Preparation…”

3. Common Viva “Traps”:

   • Examiner: “Is this chest X-ray normal?”

   • Trap: Never say “Yes” instantly. Look at the soft tissues, the bones, and the hidden areas (apices, behind the heart, below the diaphragm).

   • Better Answer: “On this PA chest radiograph, the lung fields appear clear, the cardiothoracic ratio is normal, and the costophrenic angles are sharp. I do not visualize any obvious pathology.”

“Confidence covers a multitude of errors. If you stumble, apologize and correct yourself calmly. Do not panic.”

Dr. Manny’s Strategic Study Plan

Passing the RRBN requires a schedule, not just random reading. Here is the Manny Spark 4-Week Sprint:

• Week 1: The Basics (Physics & Anatomy)

  • Focus on X-ray production, Transformers, and Skeletal Anatomy.

  • Task: Draw the X-ray circuit from memory.

• Week 2: Technique & Positioning

  • Focus on Skull units, Spine, and specialized views (Skyline, tunnel views).

  • Task: Practice positioning on your roommates. Palpate the landmarks physically.

• Week 3: Pathology & Special Exams

  • Contrast studies (HSG, IVU, Barium).

  • Task: Look at 50 Chest X-rays online and write reports for them.

• Week 4: Revision & Mock Viva

  • Simulate the exam environment.

  • Task: Stand in front of a mirror and answer questions out loud to build vocal confidence.

You are not alone in this journey.

I, Dr. Manny, have curated a specific set of tutorials and mock questions available for serious students.

Contact Details:

• Brand Name: Manny Spark

• Phone 1: 08039822082

• Phone 2: 08056553153

Key Takeaway

The RRBN Second Professional Exam is a test of competence, not just memory. The board wants to know that you are safe to practice on the Nigerian public.

1. Safety First: Always mention radiation protection (LMP check for females, shielding).

2. Clarity: Be precise with anatomical terms.

3. Resilience: If you find one paper difficult, do not let it affect the next one.