Question | Answer |
What are some symptoms that patient is in shock? | Decreased Temperature, weak pulse, rapid heartbeat, hypotension, skin pallor |
Why is anaphylactic shock the most frequently seen type of shock in radiography? | Iodinated contrast agents are frequently used. |
Early signs and symptoms of anaphylactic reaction are? | Itching, tearing of eyes, apprehension |
Symptoms of a partially obstructed airway may include? | Labored, noisy breathing, wheezing, use of neck muscles to assist with breathing |
If a patient appears to be fainting, the 1st thing you should do is what? | Assist the patient to a safe position and then call for help. |
What are some symptoms of cardiogenic shock? | Loss of consciousness, decreased blood pressure, weak or rapid pulse |
What are some signs of hypovelemic shock? | Pallor, thirst, cold, clammy skin, restlessness |
Define diaphoresis | Profuse sweating |
What is glucagon? | Hormone secreted by islets of Langerhans in response to hypoglycemia or stimulation of growth hormone. |
Define shock. | Body's pathological reaction to illness, trauma, or severe physiologic or emotional stress. |
What are the 3 stages of shock? | Compensatory, Progressive and Irreversible |
What are the 3 classes of shock? | Hypovolemic, Cardiogenic , and Distributive (Vasogenic) |
What is the cause of cardiogenic shock? | It is caused by a failure of the heart to pump an adequate amount of blood to the vital organs. |
How does distributive shock occur? | When the blood pools in peripheral blood vessel, resulting in decreased venous return of blood to the heart, decreased bp, and decreased tissue perfusion. |
What are the 3 types of distributive shock? | Neurogenic, Septic, and Anaphylactic |
Name some causes of neurogenic shock. | Spinal cord injury, insulin reaction or shock, anesthesia |
What is the cause of septic shock? | Gram-negative or gram-positive bacteria |
Define anaphylactic shock? | An exaggerated allergic reaction to re-exposure to an antigen that was previously encountered by the body's immune system. |
What is another name for anaphylactic shock? | Anaphylaxis |
What are the most common causes of anaphylactic shock? | Medications, iodinated contrast agents, and insect venoms |
What are some of the causes of obstructive shock? | Pulmonary embolism, pulmonary hypertension, aterial stenosis, or tumors |
Define pulmonary embolus. | The blockage of one or more pulmonary arteries by a thrombus or thrombi. |
What are the 4 types of diabetes? | Type I diabetes mellitus, Type 2 diabetes mellitus, Diabetes mellitus associated with other medical conditions, Gestational Diabetes |
Type ___ diabetes mellitus occurs in persons younger than 30 year old. | Type 1 |
Type __ diabetes mellitus occurs in persons older than 40 year old. | Type 2 |
What are some causes of cerebral vascular accidents (CVA)? | Blocked blood supply to brain, rupture of blood supply to brain, rupture of cerebral artery |
What is a brain attack | Stroke |
Define Ileostomy | Artificial opening (stoma) erected in small intestine (ileum) and brought to surface for evacuating feces. |
Define radioisotope. | Radioactive form of element used for diagnosis and treatment. |
Define radionuclide. | Radioactive nuclide that disintegrates with emission of electromagnetic radiation. |
Define stoma. | Opening in body created by bringing loop of bowel to skin's surface. |
Name the 2 types of contrast agents. | Negative and positive |
What do negative contrast agents do? | DECREASE organ density to produce contrast |
What do positive contrast agents do? | INCREASE organ density and improve visualization. |
Name two negative contrast agents. | Carbon dioxide, air |
Name two positive contrast agents. | Barium sulfate, Iodinated preps |
What are the different routes of administration of barium sulfate? | By mouth, by rectum, or by infusion |
What eating instructions are given for a LGI? | 2 - 3 days before, eat a low-residue diet . |
Does the patient decrease or increase fluid intake before the LGI? | Increase (2 - 3 days before) |
What is recommended 24 hours before a LGI? | A clear liquid diet |
What happens the afternoon before a LGI? | 10 ounces of magnesium citrate or equivalent is prescribed. |
Is there any other prep needed the night before for a LGI? | A cleansing enema should be used. |
What is the most frequently used type of cleansing enemas? | Saline, hypertonic, oil-retention, tap water and soapsuds enemas |
The amount of solution prescribed for a saline or SS cleansing enema before barium studies of the LGI is usually ________ ml. | 1000 |
The only safe soap to use for a cleansing enema is? | Castile soap |
When upper & lower GI series are scheduled, as the readiographer, you must schedule the UGI series first. T/F | False |
The type of cleansing enema prescribed for a pediatric patient would probably be? | Saline enema |
Why must a patient not smoke or chew gum before these exams? | It increases gastric secretion, which may cause dilution of the contrast agent. |
What are some adverse reactions to glucagon? | Nausea, vomiting, hives, flushing |
What are some adverse reactions to anticholinergic drugs? | Dry mouth, thirst, tachycardia, urinary retention, blurred vision |
How much barium does a patient drink for the UGI series or SBFT? | 14 to 16 ounces of flavored barium |
If a patient is scheduled for an UGI and LGI using barium, which exam should be performed first? | LGI is first because barium clears quicker |
All radiographic exams that _____ contrast media should be scheduled _________. | do not, first |
Ultrasound exams are scheduled ________ GI exams using contrast agents. | before |
Thyroid scans must be done _______ exams using iodinated contrast agents | before |
Exams requiring patients to fast for 8 hours or more should be scheduled when? | Early in the morning. |
Priority scheduling is given to what age group/disease category? | Pediatric, elderly, diabetes mellitus patients |