1-6 Flashcards
What tonicity is D5W?
Isotonic
What tonicity is NaCl (0.9% sodium chloride)?
Isotonic
What tonicity is Lactated Ringers?
Isotonic
What tonicity is 0.40 sodium chloride (1/2 NaCl)?
Hypotonic
What tonicity is Dextrose 5% in normal saline?
Hypertonic
What tonicity is Dextrose 5% in 1/2 normal saline?
Hypertonic
What tonicity is Dextrose 10% in water?
Hypertonic
What are Crystalloids?
Solutions that contain small molecules which flow easily across semipermable membranes
What does Hypertonic mean?
Higher concentration of electrolytes compared to ECF. Cell shrivel and die.
What does Isotonic mean?
Same concentration compared to ECF. Cell stays the same.
What does Hypotonic mean?
Lower concentration compared to ECF. Cell swell and burst.
What are Colloids?
Solution containing starch or protein that does not cross semipermable membranes and stay in the vascular space. Increases osmotic rsesure and increase vascular volume.
Example of natural colloids? Example of Artificial colloids?
Natural: Albumin, plasmanate
Artificial: Dextran, Hespan
How often will you monitor a patient with an IV?
Every hour
What is a Hypodermoclysis used for? Who is it often used for? What are the contraindications?
Long-term administration of medications through subcutaneous route. Used for patients with limited IV access, palliative care or mild dehydration. Only one medication per site.
What are the S/S for infection at IV site? Treatment for local infection? Treatment for systemic infection?
REED. Local infection is treated with ……………. Systemic is treated with antibiotics.
What is Infiltration? S/S?
Occurs when IV fluid enters the surrounding space around the venipuncture site. S/S are swelling, pallor, coolness and pain.
What is the treatment for Infiltration?
Remove IV, elevate affected limb and apply warmth. Asses type of fluid present. Vesicant fluid may cause extravasation.
What is Extravasation? S/S?
Leakage of irritating medications such as chemotherapy that can cause blistering and other severe tissue injury including necrosis. S/S: Redness, pain, blistering, and tissue damage.
What is the treatment for extravasation?
Remove IV, follow agency policy for specific drug.
What is Phlebitis? S/S? Treatment?
Inflammation of the vein caused by chemical irritation, rate of medication administration and skill of nurse. S/S: Pain, edema, erythema, warmth over vein, redness tracking over the vein. Treatment: Remove PVAD, apply warm moist compress.
What is an Air Emboli? S/S?
Air bubble entering venous circulation due to ineffectively primed lines and flushes. S/S: Dyspnea, tachypnea, cyanosis, tachycardia, change in LOC, cough, nausea, gasp reflex and anxiety.
What actions do you take for an Air Emboli?
Clamp IV line, position patient in left lateral trendelenberg, administer oxygen, perform VS and notify physician.
What is Fragmentation? What can it cause? What are nursing actions?
Catheter emboli, IV catheter fragments break off and are loose in circulation. Can cause thrombosis, arrhythmias, infection, or endocardial/vascular perforation. Nursing actions: nurse should remove catheter and inspect for intactness, put pressure proximal to site, call for help and notify MD.
What is Fluid Overload? S/S?
Excessive fluid in the alveoli. S/S: Crackles, distended neck veins, dyspnea, tachypnea, pink-frothy sputum, bounding tachycardia pulse, and edema.
What is treatment and nursing action for Fluid Overload?
Assess fluid status, respiratory and circulatory status. Slow or discontinue IV rate, elevate HOB, oxygen support if needed, notify MD, document, administer diuretic if ordered.
Who is at increased risk for fluid overload?
Those with cardiac and renal problems, pediatric and elderly population.
What Diagnostic testing can be done for electrolytes and fluid?
Vital signs, skin turgor/mucous membranes, daily weight, I/O including sensible and insensible losses. Lab tests including serum electrolytes, creatinine, hematocrit, BUN, ABG and urine tests.
Why do we administer medication via IV route?
Rapid effect of medication, patient is NPO, provide constant therapeutic levels, less discomfort vs IM and subcutaneous.
Why would we use a glass IV bottle and what type of tubing does it require?
When medication are not compatible with plastic. Requires vented tubing.
What is Direct IV push?
Injected directly into IV line. Very dangerous due to how quick the entire med is administered.
What are some differences between veins and arteries?
Veins have valves, arteries do not. Veins may collapse, arteries do not. Arteries pulsate, veins do not. Veins are superficial, arteries lie deep.
When initiating IV therapy why do we take into consideration the condition of the vein?
Large diameter veins have greater blood flow and can handle a large amount of fluid rapidly. Avoid veins that are cord-like, tortuous, scarred, or inflamed.
When initiating IV therapy why do we take into consideration the duration of therapy?
Initial infusion therapy should be started distally. Alternate arms. Choose IV site proximal to the last site.
Is a size 14 needle smaller or bigger than a size 24?
Bigger
What do we consider when choosing size of gauge?
The indication for administration, location and size of vein, type of fluid to be administered and the rate
What are the 3 most appropriate sites for IV access (in order)?
Arm, Hand, and Foot.
What do we need to take into consideration when choosing a spot for IV access?
Certain procedures may require specific sites to be used, try to use non-dominant hand, select most distal site and work your way up, consider patient activity, comfort and preference.
What are some considerations when initiating IV access to older adults?
The vessels are more mobile, more fragile and often more tortuous and thrombosed. The dermal layers become thinner and there is less subcutaneous tissue to support the blood vessels. The veins of older people are often easier to see because of the reduction in subcutaneous tissue. Medication such as anticoagulants and steroids make the tissue more fragile.
What should we consider when initiating IV access on a patient who is on Anticoagulants?
Use of tourniquet may result in bleeding and use careful and special care to avoid bleeding and bruising. Apply tourniquet lightly, avoid excessive pressure when cleansing skin and when discontinuing the IV, apply direct pressure over the site and slight elevation to stop bleeding.
What can be done to promote blood flow to a specific area?
Tourniquet, hang arm at sides, warm blanket or compress, hydration, make fist open close open close.
What is the preference when choosing an IV catheter?
Smallest gauge to achieve desired therapy. Ensure the vein used is larger than the catheter so that there is adequate blood flow and hemodilation around the catheter. Larger catheters will cause mechanical phlebitis sooner than smaller sizes.
How do we cleanse an IV site?
Using alcohol swab/chlorahexidine cleanse for 30 seconds in concentric circles 5-7.5 cm from insertion site and allow to dry completely.
How do we insert an IV catheter?
Anchor the vein, bevel up, insert catheter at a 10-30 degree angle.
At what angle to we insert the IV catheter?
10-30 degree
What is a saline lock?
Covers and protects the end of an IV catheter to keep the system closed, thereby reducing the risk of infection to the patient. Also protect staff from exposure to blood, provides access for intermittent IV drug therapy, blood admin and tubing changes.
How do we secure the IV site?
Tegaderm, only sterile tape is to be applied underneath a transparent dressing.
How often does a saline lock need to be flushed when not in use to ensure patency?
Every 12 hours.
How much NS do we flush with prior to and following an intermittent IV?
2-5mls
Where does a Central Venous Access Device lie once inserted?
Tip dwells in the lower 1/3 of the superior vena cava.
What is the purpose of a CVAD?
Infuse fluids directly into the central venous circulation for: prolonged IV antibiotic treatment, administration of parenteral nutrition, extended and frequent chemotherapy, rapid infusion of blood, and allows for frequent blood flows.
What may be happening if your patient with a CVAD is experiencing chest pain and AFib?
The tip of their CVAD may have passed the superior vena cava into the right atrium.
What is a Non-Valved Catheter?
Open-ended tip, no valve, IN-LINE CLAMP.