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CT Registry Review
Computed Tomography Registry Review (Mosbys)
| Question | Answer |
|---|---|
| What kind of consent is needed before an invasive procedure or CT exam? | Informed Consent |
| What is considered Informed Consent? | When the procedure including risks, benefits, & possible alternatives are explained and understood. Usually must be in patients home language. |
| If the patient is unable to sign informed consent form who can their place? | Legal representative, parent, or guardian |
| What is it called when a patient is unable to give consent d/t unconsciousness, or others factors but assumption that the patient would consent if able to? | Implied Consent (CPR choking) |
| What can the technologist do prior to the exam to ensure optimal exam quality? | By communication; all contraindications, feelings, concerns, breathing instructions, bathroom use prior to contrast, side effects, metallic taste, removal of high density objects (ie barrettes, dentures) & comfort. |
| Give some examples of patient immobilization | cushions, straps, safety devices, and the breath hold technique (giving visual demonstrations of proper breathing) especially chest & abd |
| Why is obtaining an accurate & pertinent PT Hx so important? | All information can assist the Rad is Dx. |
| What are the general practices and information needed when obtaining an accurate PT Hx? | Non-leading, open-ended questions, Focused questioning & repeating to gain a clear understanding of information obtained. Recent procedures, surgeries; possible trauma, & specific areas of pain, discomfort, & symptoms. |
| What are normal ranges for the following vital signs? 1)temp 2)pulse; adult & peds 3)BP 4) Resp 5)Pulse Ox | 1)97.7 - 99.5 2)Adults 60-100 bpm, Peds 70 - -120 bpm 3)120/80 (s/d) 4)Adult 12-20, Peds 20 - 30 5)95-100% |
| What refers to the series of blood flow events that occur fro the beginning of one heartbeat to the next? | Cardiac Cycle |
| What determines a PTs heart rate? | The cardiac cycle |
| What is relaxation of the heart muscle called? | Diastole |
| What is the contraction of the heart muscle called? | Systole |
| What is a graphic representation of the electrical activity of the heart? | ECG/EKG |
| Slower the heartbeat the better... | quality of the cardiac imaging |
| What is the preferred heart rate for optimal imaging? | 65 bpm |
| What pre-med can be given to PT to slow heart rate? | B Blockers/ B-Androgenic receptor blocking agents (AKA Beta Blockers) |
| At what level of scanning do you not need to worry of heart rate as much? | newer systems, 64 slice level and beyond |
| What can be taken prior to a cardiac MSCT to cause dilation of the coronary vessels? and why? | Sublingual Nitroglycerine , improving visualization |
| Blood Urea Nitrogen (BUN) | 7-25 mg/dL |
| Creatinine (Cr) | 0.5-1.5 mg/dL |
| Glomerular Filtration Rate (GFR) | 70 +- 14 mL/min/m2 men 60 = - 10/mL/min/m2 women |
| Prothrombin Time (PT) | 12-15 seconds |
| Partial Thromboplastin Time (PTT) | 25-35 secs |
| International Normalized Ration (INR) | 0.8-1.2 |
| Platelet Count | 140,000-440,000 ul of blood |
| What are laboratory values used to indicate renal function? | BUN & Creatinine |
| Which is more accurate BUN or Cr? | Cr |
| What is an even more accurate measurement of renal function? | GFR |
| What factors contribute to a GFR reading? | Cr level, age, sex, & race |
| What is the measurement of blood coagulation? | Prothrombin Time (PT) |
| How is PT measured? | in the lab by adding a protein to the blood called tissue factor |
Created by:
radtechchic11
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