Test 1 Flashcards
What is a serious condition to find out related to family history prior to anesthesia?
Malignant hyperthermia, which is an inherited condition
What 3 level enzymes do we check for liver function tests?
ALP, ALT, AST
ALP: 20-140
ALT: 7-56
AST: 10-40
You have a young, healthy patient who experiences cardiac arrest during surgery. What should you presume? What is the treatment?
Presume hyperkalemia and initiate treatment:
- Hyperventilation
- Bicarbonate (1-2 mEq/kg IV)
- Glucose/insulin
- Calcium chloride 10 mg/kg or calcium gluconate 10-50 mg/kg for life-threatening hyperkalemia
- Check glucose hourly
What is a normal BNP level?
Men: <35
Women: <64
In pt 60+
Men: 35-91
Women: 96-163
What is a common ending for B1 agonists?
-erol
Remember: B1 is -olol
What is the diet to control HTN?
Dietary Approaches to Stop Hypertension (DASH)
4 servings fruits/vegetables per day
Low saturated fat and cholesterol
Low sodium (2 g/day)
Alcohol 2 drinks/day
What is an early sign of LHF?
Cough described as irritating, nocturnal, and nonproductive
What is the top priority during the perioperative period?
Patient safety
What are normal sodium levels?
Na+ = 135-145
What are normal levels for potassium?
K+ = 3.5-5.0
When does the preoperative period begin and end?
Begins when the patient is scheduled for surgery and ends when the patient is transferred to the surgical suite.
What are some causes of right-sided HF
LHF, right ventricle MI, pulmonary HTN (r/t LHF)
What is HTN?
BP greater than 140/90
What are the two conditions that are part of COPD?
Emphysema and chronic bronchitis
When are vital signs taken post-operatively?
q15 x4
q30 x4
q1
q4
What urine output are we looking to achieve?
30 cc/hour
What are normal cholesterol levels?
Total: <200 mg/dL
LDL: <100 mg/dL
HDL: >60 mg/dL
Triglycerides: <150 mg/dL
What are normal carbon dioxide levels?
CO2 = 23-30
Furosimide (lasix)
Class: Loop diuretic
Action: Block Cl and Na reabsorption
What is carboxyhemoglobin?
CO2 bound to O2 binding sites of hemoglobin
What is a normal prothrombin time?
11-12.5 sec, 85-100%
What activates the renin-angiotensin system (RAS)? Which drugs act on this system?
Decreased renal blood flow
ACE inhibitors and ARBs
What does a preoperative urinalysis look for?
Protein, glucose, blood, bacteria in the urine (to check for potential kidney disease)
What should the nurse monitor for in a patient just starting and ACEI or ARB?
ACE-inhibitors and ARBs should be given slowly because the first dose may cause rapid drop in BP. Monitor BP every hour for several hours.
What is the most reliable indicator of fluid gain/loss?
Weight (not edema)
What would cause RHF without the presence of LHF?
COPD, pulmonary HTN, or acute respiratory distress syndrome
A patient under general anesthesia is experiencing limb muscle rigidity, what should the nurse suspect and what course of action should be taken?
Possible malignant hyperthermia (MH)
- Notify the surgeon
- Discontinue succinylcholine
- Hyperventilate with 100% O2
- Stop procedure as soon as possible
- Dantrolene 2.5 mg/kg rapid IV with large-bore IV
- Bicarbonate 1-2 mEq/kg if ABG not available
- Cool
What is the primary risk of kidney impairment in regards to anesthetic agents?
Kidney impairment decreases the extretion of drugs
When must temperature be taken post-surgery?
Within 15 minutes
Spironolactone (Aldactone)
Class: Potassium-sparing diuretic
Action: Interfere with Na-K exchange
What are normal blood urea nitrogen levels?
BUN = 10-20
When should prophylactic antibiotics begin and end?
Begin one hour before surgery to ensure bactericidal blood and tissue levels by the time the incision is made. Antibiotics should be discontinued within 24 hours of completion of surgery.
What heart sound is a common early sign of HF?
S3
HCTZ (Hydrochlorothiazide)
Class: Diuretic
Action: Inhibits Na, K, Cl reabsorption
Nursing: Monitor I/O, weight, electrolytes (especially K and glucose)
What is a normal INR?
0.7-1.8
What are normal albumin results
3.5 to 5.5 g/dL
When are activities for post-operative care taught?
In the pre-operative phase
What food allergies are related to latex allergies?
Avocados, bananas, strawberies, and other fruits
Mannitol
Class: Osmotic diuretic
Action: Produces osmotic pressure pulling fluid into tubule
What are normal PTT results
25-35
What is a common ending for cholinergic antagonists?
-tropium
Patients with which type of condition have the most frequent complications with anesthesia?
Cardiac conditions
When should a urinary catheter be removed following surgery?
POD 1 or POD 2
What are s/s of malignant hyperthermia?
- Increased ETCO2
- Trunk or total body rigidity
- Masseter spasm or trismus
- Tachycardia/tachypnea
- Acidosis
- Increased temperature (may be late sign)
What is the most common cause of heart failure?
Systemic hypertension
What are normal and elevated troponin ranges? What level indicates probable MI?
Normal: < 0.04
Elevated: 0.04 - 0.39
Probable MI: 0.40+
What heart failure starts with which side of the heart?
Left ventricular HF
How should hair removal, if required, be performed?
With electric clippers or chemical depilatories only
What are s/s of RHF
Peripheral edema, increased venous pressure
How often should pain be assessed after surgery?
q 2 hours
Are beta-blockers to be continued during surgery?
Yes - significant reduction in coronary events has been noted for those already on beta-blockers prior to surgery
What are common signs of RHF?
Edema in lower legs, progressing to thighs and abdominal wall
** Ask about weight gain, as one might retain 10-15 pounds of fluid before pitting edema occurs
What are normal calcium levels?
Ca+ = 8.5-10.2
What should venous thromboembolism prophylaxis be applied?
24 hours prior to and 24 hours after surgery
What is ETCO2 and what does it measure
End-title carbon dioxide - it measures effectiveness of ventilation
What does SCIP stand for and what does it focus on?
Surgical Care Improvement Project
Focuses on infection prevention, prevention of serious cardiac events, and prevention of VTE/DVT
What is post-acute care of MH?
- ICU at least 24 hours
- Dantrolene 1 mg/kg q 4-6 hours
- CK (creatine kinase) lab q 6
- Frequent ABG
What is a normal hematocrit?
Females: 35-45%
Males: 42-52%
What is a normal WBC
5,000-10,000
What are normal chloride levels?
Cl- = 98-106
What are normal protein levels
6-8.3 g/dL
What food allergies are related to an allergy to propofol?
Egg, peanut, or soy allergies