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Procedures III
Mobile Radiography
| Question | Answer |
|---|---|
| Where is mobile radiography commonly preformed? | Pt rooms, ED, ICU surgery, recovery, nurse, neonatal |
| When was mobile radiography first used and by whom? | By the military in WWl |
| What are the typical controls for mobile radiography? | kVp & mAs |
| What are the ranges on mobile radiography for KVP and mAs? | kVp 40-130 mAs .04-329 |
| What is the power range on mobile radiography unit? | 15-25kw |
| What 2 categories are mobile radiography machines classified? | battery operated and capacitor |
| When the battery os fully charged how many exposures can the machine do? | 10-15 X-rays |
| How many batteries does the portable machine have? | 2 sets first set - 10 - 12volt to control the x ray out put(exposure) second set- provides the power for the machine to move |
| What is the deadman switch? | when you let go of the bar the machine automatically stops |
| what is a capacitor discharge mobile unit? | does not operate on batteries stores electrical energy has to be charged before each exposure kvp fluctuates |
| what is the disadvantage with the capacitor unit? | kVp constantly fluctuates which can cause inadequate penetration |
| What is the SID for most mobile exposures? | 40" SID |
| True or False Mobile radiography produces some of the highest occupational radiation exposure for radiographers? | True |
| True or False radiographers (xray tech) doest need to wear a lead apron? | False Its worse for the scatter radiation from the patient |
| What is the minimal safe distance when using a mobile X-ray machine? | 6ft |
| What angle should the x-ray tech stand for the least amount of exposure | At a right angle to the patient and the primary beam |
| What is the single most effective radiation protection? | Distance |
| When using the portable machine, What should that technician do before exposing his patient for the exam? | Make sure anybody in the vicinity is at least 6 feet away provide lead aprons for those who cannot leave the room yell x-ray before you are about to expose and you are clear when you're done |
| When should you shield patient gonads? | When x-raying children when x raying a persons of reproductive age what a patient's request when the gonads lie Near useful beam when the Shield will not interfere with the anatomy of interest |
| What is the minimum source to skin distance? | 12" |
| What are the two types of patients in isolation? | Patients who have contagious infection and patients must be protected from infection (reverse isolation) |
| What should the tech do before and after an isolation case? | Where are all required protective apparel wash hands before and after gloving protect the IR with protective cover clean and disinfect the equipment before and after each use when doing an isolation case |
| If the patient is examined seated upright where is the base of the mobile unit? | At the end of the bed |
| If the patient is to be examine supine where is the base of the machine? | move base of machine to the middle of the bed |
| True or false Column nation should be opened as large as possible even if it's larger than IR | false |
| What can be done to the IR to protected from contamination? | Place IR in a bag |
| True or false The IR can damage the skin of older patients? | True |
| Where is the central ray for a portable AP chest? | Perpendicular to the long axis of the sternum 3 inches below the jugular notch at level of T7 |
| How should the IR be centered for the portable AP chest? | IR under patient with the top 2 inches above the left shoulder |
| What is the SID for the portable AP chest? | 40" SID |
| What is the CR for portable abdomen? | Perpendicular been entering the iliac crest |
| Where is the CR placed for portable abdomen? | Center of the grid to the level of iliac crest |
| Where is the IR replaced for a portable abdomen if the upper abdomen is of interest | center the grid 2 inches above crest or high enough to include the diaphragm |
| What is the structure shown for portable abdomen projection? | Inferior margin of the liver spleen kidney psoamuscles any calcifications |
| Where is the IR centered for AP portable pelvis | Center the grid under the pelvis so the center is midway between that ASIS and pubic synthesis |
| What is the central ray for portable AP pelvis | Perpendicular to the midpoint of the grid entering the patient 2 inches above pubic synthesis and 2 inches below ASIS |
| Where is the IR placed for portable AP trauma hip? | IR portrait with the top at the level of the iliac crest |
| What is the CR for portable AP trauma hip? | Perpendicular entering 1 to 2 inches distal to the mid femoral neck |
| What is another name for portable lateral axial lateral inferiosuperior? | Danielius Miller |
| Where is the central Ray for the portable Danielius Miller projection | Horizontal and perpendicular to the femoral neck and into the plane of the IR |
| Where is the IR placed for the portable Danielius Miller? | Against the patient's side just above iliac crest and adjusted so it is parallel to the femoral neck |
| What is the central ray for portable femur AP distal projection? | Perpendicular to the long axis of the femur |
| Where is the IR placed for the portable AP femur distal projection? | Lengthwise under femur with distal edge of grid low enough to include fracture site and knee joint |
| When thinking of the Portable AP distal femur, In what direction should the IR be placed in relationship to the femoral condyles? | Grid is placed parallel to the plane of the femoral condyles |
Created by:
knt5411
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