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chest · PA

Chest PA (Erect)

Patient erect, facing the vertical Bucky / chest stand, chin raised and resting on top of IR.

AI Patient · KV Sir

How to perform this view

  1. 01

    Remove all metal, jewellery and clothing from waist up; give gown.

  2. 02

    Stand patient facing IR with feet apart for stability.

  3. 03

    Raise chin and place on top of IR; adjust IR so top is 4-5 cm above shoulders.

  4. 04

    Place backs of hands on hips, elbows forward; roll shoulders forward against IR.

  5. 05

    Ensure no rotation - both shoulders equidistant from IR.

  6. 06

    Centre CR to T7 (inferior angle of scapula), collimate to lung fields.

  7. 07

    Expose on second full inspiration.

Anatomical & patient position

Patient: Patient erect, facing the vertical Bucky / chest stand, chin raised and resting on top of IR.

Part: Mid-sagittal plane (MSP) perpendicular and centred to IR; shoulders rolled forward, backs of hands on hips to move scapulae out of lung fields.

Central ray & centring point

Horizontal, perpendicular to IR, centred at T7 (18-20 cm below vertebra prominens).

Exposure factors

kVp

110-125 kVp

mAs

2-4 mAs (AEC: both lateral chambers)

SID

180 cm (72 in) to minimise heart magnification

IR size

35 x 43 cm (14x17 in), portrait or landscape for broad chests

Grid

Yes - high-ratio grid / Bucky (or no grid for small patients)

Respiration

Suspend respiration on second full inspiration

Clinical indications

  • Pneumonia, consolidation and infection
  • Pneumothorax and pleural effusion
  • Cardiomegaly, heart failure
  • Lung masses, nodules, TB screening
  • Post-procedure line/tube check
  • Pre-operative and occupational screening

Contraindications & precautions

  • Pregnancy (relative) - confirm LMP / 10-day rule, justify exposure and shield where possible
  • Haemodynamically unstable or unable-to-stand patient (perform supine/AP alternative instead)
  • Severe trauma with suspected spinal injury (do supine AP)

Structures shown & evaluation criteria

  • Both lungs from apices to costophrenic angles
  • Heart, mediastinum, trachea
  • 10 posterior ribs above diaphragm
  • Sternoclavicular joints equidistant from spine (no rotation)
  • Scapulae projected outside lung fields

Radiology By KV Sir — radiographic positioning for students & technologists.

Educational reference only. Always follow your department protocol & ALARA.