Instruments & Imaging Flashcards
What is it?
- These are two blood culture bottles, one for aerobic bacteria and one for anaerobic bacteria.
What are the indications?
- Pyrexia or suspected systemic sepsis
How do you use it?
- The blood is injected in a sterile manner into the bottles using a different needle from the one the blood was drawn with.
- Aerobic (blue) is taken first and then anaerobic (purple)
What is it?
- Bottle to which the chest drain is attached
What are the indications?
- Pneumothorax
- Blood, fluid and pus from the pleural space
How do you use it?
- There will be a line called prime level which is filled with sterile water
- Chest drain tubing is connected to a tube which is under the sterile water and therefore acts as a water seal
- After insertion, you can see bubbling in the water as the air leaves the pleural space.
- The system can be driven by attaching suction to the top of the bottle making it an example of a active closed drainage system
What are the complications?
- Reperfusion pulmonary oedema
What is it?
- Denver’s Retractors
What are the indications?
- Used in open abdominal surgery to allow the surgeon to operate
- Frequently be asked to use one during your clinical training when you are assisting in theatre
What is it?
- Disposable rigid sigmoidoscope
- Allows you to visualise the rectum and lower sigmoid (does not actually reach the sigmoid)
What are the indications?
- Biopsies can also be taken of rectal mucosa through the sigmoidoscope e.g. in a case of ulcerative colitis
How do you use it?
- Explaining to the patient what you are about to do
- You must attach a light source and a air pumping device
- The patient is placed in the left lateral position and a digital rectal examination is performed
- The sigmoidoscope is then lubricated with jelly and inserted pointing towards the umbilicus
- Air is pumped into the rectum to allow you see the direction of the rectal lumen.
What are the complications?
- Damage to local structures
What is it?
- Drainage bag which can be connected top either a nasogastric tube or a drain coming out of the abdomen
How do you use it?
- Drainage relies on gravity so this is an example of a closed passive drainage system
What is it?
- Adult endotracheal tube
- Used to provide a definitive airway for patients
What are the indications?
- Long operations e.g. laparotomies
- During cardiac arrests
- Trauma
How do you use it?
- The endotracheal tube is inserted using a laryngoscope, through the laryngeal folds.
- The end of the tube should lie just above the carina to allow ventilation of both lungs.
- After inserting the tube a balloon at the end of the tube is inflated with air through the blue side port.
- Position of the tube is checked by looking for symmetrical rising of the chest on ventilation breath sounds bilaterally and no gurgling over the epigastrium indicating oesophageal intubation.
- The tube is then tied into place.
What is it?
- Feeding nasogastric tube (clinifeed tube)
- Thin bore and soft making it more comfortable for patients
- Made of silastic which blocks less often.
What are the indications?
- Used to long term enteral nutrition in patients.
How do you use it?
- Explain to the patient
- Insert into the nostril after it has been lubricated
- These tubes come with a wire inside them to aid their introduction
- Advance the tube as the patient swallows
- Correct position of the tube is checked by x-raying for the wire
- When you are happy with the position of the tube the wire is removed and the feed attached in a sterile manner.
What are the complications?
- Aspiration pneumonia due to poor positioning
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What is it?
- This is a bag of 5% dextrose, which can be used in conjunction with normal saline to provide the normal daily fluid requirement for a patient.
- One litre of 5% dextrose contains 50g of dextrose in 1 litre of water
- It should be remembered that because the sugar in this fluid is metabolised to carbon dioxide and water you are essentially giving them water
.
What is it?
- This is a plate that is used in conjunction with screws to internally fix a bone fracture.
How do you use it?
- Need at least two screws either side of the fracture
What is it?
- This is 500ml of gelofusin which is an example of an artificial colloid solution.
- Colloid solutions raise the plasma oncotic pressure and hence expand the intravascular compartment.
- There are other colloids and some available are natural e.g. albumin and blood.
What are the indications?
- Colloids are useful in cases of shock e.g. due to sepsis or hypovolaemia.
What are the complications?
- Increased risk of anaphylaxis
What is it?
- Hartmann’s
- Crystalloid solution, which contains sodium, chloride, bicarbonate and lactate
- Similar composition to the extracellular fluid
What are the indications?
- Normal daily fluid requirement of a patient or to supplement the patient for additional loses
- Resuscitation
- Hartmann’s solution is a favorite solution of anaesthetists and is the fluid advocated to be given initially in trauma in the Advanced Trauma and Life Support (ATLS) guidelines.
What is it?
- Hemi arthoplasty hip prosthesis
What are the indications?
- Intracapsular fractures of the neck of femur
- Patients with low mobility
What are the complications?
- Cement reaction
- DVT
- Loosening, dislocation, correction, septic arthritis
What is it?
- Long term central venous
- Large bore veins
What are the indications?
Short-term
- CVP measurements
- pulmonary artery catheterisation
- fluid resuscitation
- drug administration (e.g. inotropes, potassium amiodarone, etc.)
- haemodialysis
- transvenous cardiac pacing
Long Term
- Feeding by parenteral nutrition
- Long- term venous blood sampling using, for example, a Hickman line
- Cytotoxic drug administration
How do you use it?
- Inserted in a similar way to a central line (usually subclavian)
- Remnant of the line is tunnelled subcutaneously which decreases the incidence of line infection
What is it?
- This is a total hip replacement which articulates with a plastic acetabular cup.
What are the indications?
- The main indication for a hip replacement is pain from osteoarthtis of the hip.
- NOF fracture
What is this?
- IM femoral nail
Indications?
- Used to internally fix femoral shaft fractures.
- Subtrochanteric long bone fractures.
How is it used?
- Interlocking screws are used to fix the nail.
- They are usually removed after 12 / 18 months.
What is it?
- Intravenous cannula which can be used to give intravenous fluids and drugs
How do you use it?
- If you wish to give fluid quickly the cannula must be short and large bore. I.e. brown or grey.
- Orange/Brown 14G
- Grey 16G
What is it?
- Large bore irrigation type foley urinary catheter
What are the indications?
- Used to irrigate the bladder of patients at risk of clot retention e.g. after a TURP
- They bleed a lot so tend to need irrigation
What are the complications?
- If it blocks, can back up and cause hydronephrosis.
What is it?
- Laparoscopic port which is
What are the indications?
- Used during Laparoscopic procedures e.g. Laparoscopic cholecystectomy.
How do you use it?
- These ports allow the surgeon to insert a telescope and instruments in the patient.
- Has a trochar in the middle.
What is it?
- Laryngeal mask airway
What are the indications?
- Used to provide an airway during short operations e.g. day cases
What are the complications?
- It does not protect the airway.
What is it?
- Leg bag which is attached to urinary catheter.
Indications
- A man who suffers with incontinence following sphincter damage after multiple TURPs.
How is it used?
- The Bag is strapped to the leg of the patient and is indicated for patients who are mobile and have either a short or long term indwelling urinary catheter.
What is it?
- Mannitol is an osmotic diuretic
Indications
- Used to lower raised intracranial pressure
- Drive the urine output in a patient with obstructive jaundice to prevent hepato renal syndrome
What is this?
- Nasopharyngeal airway
- Provide an airway in people with a decreased level of consciousness or decreased gag reflex
How is it used?
- Inserted into the nose using a rotational action.
- The diameter tube should be sized against the patients own little finger distal phalanx.
- A safety pin is placed in the end of the tube to prevent it being inhaled.
What is this?
These are special forceps designed to hold the needle to allow the surgeon to suture accurately.
What is this?
- Normal (0.9%) Saline.
- Normal saline is an example of a crystalloid solution which contains 153mmol of NaCl.
Indications
- Used to provide the normal daily fluid requirement for a patient or to replace additional losses e.g. vomit or diarrhoea.
- Has more sodium than Hartmann’s.
What is it?
This an example of a synthetic non absorbable monofilament suture.
Indications
This suture can be used to close skin wounds.
What is it?
- Oral pharengeal airway used to provide an airway for a patient where there is an impaired level of consciousness.
How is it used?
- Sized by measuring the distance the from the angle of the mouth to the angle of the jaw.
- It is inserted into the mouth upside down and rotated within the oral cavity.
- It is inserted the correct way up in children.
This is a paediatric oxygen mask.
What is it?
- Proctoscope
What are the indications?
- Used to visualise the anal canal and lower rectum
- Injecting or banding haemorrhoids
How do you use it?
- After explaining the procedure to the patient, the patient is placed in the left lateral position and a digital rectal examination is performed.
- The proctoscope is then attached to a light source and lubricated prior to its insertion into the rectum.