Procedures & Skills Flashcards
(53 cards)
What is most commonly responsible for causing misdiagnosis of pericardial effusion?
Anterior cardiac fat pad
What factors are likely to result in an underestimation of ocular pressure?
- Ocular pressure > 30 mm Hg
- Prior refractive surgery (thin cornea)
- Corneal edema (thick, but soft cornea)
What factors are likely to result in an over estimation of ocular pressure?
- Supine patients
- Breath holding
- Off-center measurement
- Excessively depressing cornea with sensor
Side effect of benzocaine
methemoglobinemia
Equipment needed to perform needle cricothyrotomy
5mL syringe, 3.0 ETT adapter, 16G over-the-needle catheter
Four measures to reduce risk of developing post-LP headache?
- Ensuring needle bevel parallel to dural fibers
- Replacing stylet prior to removing needle
- Small-diameter needles (22 gauge)
- Atraumatic needles (Quincke or Whitacre)
Absolute contraindications to LP
- Plt < 20,000
- Coagulopathies
- INR >/= 1.5
(Can give platelets or clotting factors, reverse anticoagulation) - Lumbar trauma vertebrae
- Infection at puncture site
- Heparin administration in 24 hrs prior
- Spinal or CNS lesion causing increased ICP
Maneuvers for reduction of nursemaid’s elbow (radial head subluxation)
- Supination technique
- Hold elbow at 90 degrees with pressure at radial head
- Firmly supinate child’s wrist and flex elbow directing wrist toward ipsilateral shoulder - Hyperpronation
- Hold elbow at 90 degrees
- Firmly pronate wrist
Best transport solution for avulsed tooth
Hank’s solution - isotonic solutions with glucose and sodium bicarb (Milk is good alternative)
ED care of tooth avulsion
- Temporary replantation
- Tooth should be gently rinsed (not wiped)
- Tooth should be handled by the crown
- Dental socket carefully rinsed and suctioned
- Tooth replanted gently and splinted with periodontal dressing material
- Arrange dental follow-up for following day
Proper procedure for PTA aspiration/I&D
- Premedicate with opioid + intramucosal anesthetic
- Finger sweep to assess for fluctuance
- Needle sheath should be used to control puncture depth
- Aspiration undertaken in the soft palate at the point of maximal abscess fluctuance
- Medial and superior aspiration are safer to avoid carotid artery (2.5 cm posterolateral to tonsil)
Contraindications for PTA needle aspiration
- Severe trismus
- Non-cooperative patient
- Recurrent PTA (indication for tonsillectomy)
- Evidence of deep neck tissue extension
- Airway obstruction
At which location is the pediatric airway the narrowest?
Cricoid
Ways pediatric airway differs from adult airway
- Proportionally smaller larynx that is more anterior and cephalad
- Epiglottis is longer and narrower
- Head, occiput, tongue proportionally larger
- Neck is shorter
- Adenoids larger
- Risk of mainstem higher due to short trachea and bronchus
ETT depth equation
3 x tracheal tube size
OR age/2 + 12
Common adverse effects of massive transfusion
- Thrombocytopenia
- Hypocalcemia
- Hypomagnesemia
- Hypothermia
- Metabolic acidosis
- DIC
What four clinical variables are used to calculate the Assessment of Blood Consumption score to predict the need for massive transfusion?
- Penetrating mechanism of injury
- Positive FAST
- SBP <90
- HR >120
Differentiating between traumatic LP and SAH
Presence of xanthochromia is pathognomonic for SAH
Rate of clearance of RBCs from tube 1 to tube 4 was used, but no longer accurate
Contraindications for Tissue Adhesives
- Wounds under tension
- Complex stellate lesions
- Wounds over joints
- Wounds on mucosal surfaces
- Wounds in hairy areas
- Wounds requiring high level of precision
- Bite wounds
Tissue adhesives are equivalent to what type of sutures?
5-0 Nylon
How long do tissue adhesives typically remain on the wound?
5-10 days
What vein is most preferable to access during a peripheral venous cutdown in children?
Saphenous vein - distal at the medial ankle where it crosses 1cm anteriorly to the medial malleolus
After what period of time does the incidence of infection rise dramatically following insertion of a peripheral catheter?
After about 48 hours
If saphenous nerve damaged during cutdown, what type of deficit will be felt?
Small area along medial aspect of foot with sensory loss