Endoscopic Studies Flashcards

1
Q

What is endoscopy?

A

General term referring to inspection of internal body organs/cavities by using an instrument called an endoscope

Procedures are specifically name for the organ/cavity to be visualized/treated

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2
Q

What does endoscopy allow for?

A
Direct observation
Biopsy of Suspicious tissue
Removal of polyps
Injection of variceal blood vessels
Performance of Surgical Procedures
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3
Q

What is an endoscope?

A

Tubular instrument with light source and lens for observation

Can be inserted through body orifice or small incision

Has accessory lumen for insertion of water or medication or the suctioning of debris

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4
Q

What is the purpose of using an endoscope?

A

Visualization of organ/joint
Obtain biopsy specimens with forceps or brushes
Coagulate blood vessels
Provide laser beams to coagulate vessels or remove tissue

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5
Q

What are the two basic types of endoscopes?

A

Rigid

Flexible

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6
Q

What is a rigid endoscope?

A

First type available

Still used in operative endoscopy for arthroscopy

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7
Q

What is a flexible endoscope?

A

Most often used in pulmonary and GI endoscopy

Allow transmission of images over flexible, light carrying bundles of glass wire

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8
Q

What does endoscopy eliminate the need for?

A

Open surgery

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9
Q

How is an endoscopy performed?

A

Via video camera over viewing lens

Image is transmitted to nearby TV monitor where body cavities or organs are viewed

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10
Q

What must be done pre-operatively for an endoscopy?

A

Patient must be prepped for general anesthesia and must be told that if complications arise, they may undergo open surgery

Routine pre-op care and teaching must be performed

Area to be examined should be shaved to remove hair

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11
Q

What type of endoscopy is considered clean but not sterile?

A

Genitourinary endoscopy

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12
Q

What is used in laparoscopy to distend the abdominal cavity?

A

CO2

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13
Q

What are complications of CO2 being used in laproscopic procedure?

A

Significant gas pains or referred shoulder pain

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14
Q

What is used in cystoscopy to distend the bladder which allows visualization of the bladder mucosa?

A

Water

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15
Q

What is done post-op?

A

Patient should be monitored as any post-op patient would be

Patient must be observed by staff and have someone sit with them until sedatives have worn off

Someone else must drive patient home

Patient is NPO status for 2 hours after pulmonary endoscopy or upper GI tract endoscopy so that they can regain swallowing and cough mechanism

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16
Q

What are complications of endoscopy?

A

Perforation of organ or cavity

Persistent bleeding from biopsy site

Assess vital signs closely, inspect body secretions for blood

Respiratory depression as a result of oversedation; carefully assess patient for respiratory depression

Infections and Transient Bacteremia = observe for signs and symptoms of sepsis, encourage pt. to drink fluids

Aspiration when upper airway or upper GI tract was evaluated = patient NPO

Cardiovascular problems = Arrythmias/MI or vasovagal-induced bradycardia

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17
Q

What is Arthroscopy?

A

Endoscopic procedure that allows examination of interior of joint with a specially designed endoscope

Uses rigid scope

Performed by orthopedic surgeon in OR

30 min. - 2 hrs.

Done under general anesthesia and/or sedation

Joint may be painful and swollen for several days or weeks after

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18
Q

What are normal findings of arthroscopy?

A

Normal ligaments
Menisci
Articular surfaces of joint

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19
Q

What are indications for an arthroscopy?

A

Pain in Knee or shoulder
Locking
Swelling
Instability

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20
Q

What procedures can be performed using arthroscopy?

A

Meniscectomy
ACL/PCL repair
Biopsy
Irrigation and Drainage

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21
Q

What is the advantage to arthroscopic procedures?

A

Recovery is faster and more comfortable

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22
Q

What are contraindications for arthroscopy?

A

Patients with ankylosis because you can’t maneuver scope

Local skin or wound infection

Recent arthrogram because some residual inflammation from injection of contrast dye might be present

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23
Q

What are potential complications of arthroscopy?

A
Infection
Hemarthrosis 
Swelling
Thrombophlebitis
Joint Injury
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24
Q

What is a colonoscopy?

A

Test performed by physician trained in GI endoscopy

Takes 30-60 min.

Performed in endoscopy suite or OR

Patient is heavily sedated so they won’t feel pain and can’t recall procedure

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25
What side if a patient placed on for colonoscopy?
Left side
26
What are normal findings of a colonoscopy?
Normal Rectum Colon Distal Small bowel
27
What are indications for a colonoscopy?
Patients with change in bowel habits Obvious or occult blood in the stool Abdominal pain Surveillance tool for patients who have had colorectal cancer, Inflammatory bowel disease or polyposis
28
What does a colonoscopy test for?
Direct visualization of rectum, colon, and small bowel ``` Benign or Malignant neoplasms Polyps Mucosal inflammation Ulceration Sites of active hemorrhage ``` Biopsy specimens of cancers, polyps and inflammatory bowel diseases
29
What are the contraindications for colonoscopy?
Patients who are uncooperative Unstable patients like those with hypotension Patients bleeding profusely from the rectum Patients with suspected perforation of colon because air can worsen fecal peritoneal soilage Patients with toxic megacolon Patients with recent colon anastomosis within 14-21 days
30
What is a bronchoscopy?
Endoscopic procedure which permits visualization of larynx, trachea, and bronchi Performed by physician (pulmonary specialist or surgeon 30-45 min. Minimal discomfort felt Performed either bedside or in endoscopy room
31
What are the diagnostic indications for a bronchoscopy?
Direct visualizataion of tracheobronchial tree Biopsy of tissue from observed lesions Aspiration of “deep” sputum for culture and sensitivity and for cytology determinations Direct visualization of larynx for identification of vocal cord paralysis
32
What are the therapeutic indications for a bronchoscopy?
Aspiration of retained secretions in patients with airway obstruction or post-op atelecstasis Control of bleeding within bronchus Removal of aspirated foreign bodies Brachytherapy, which is endobronchial radiation therapy using an iridium wire placed via bronchoscope Palliative laser obliteration of bronchial neoplasticism obstruction
33
What is a rigid bronchoscope?
Wide bore metal tube that permits visualization of only LARGE airway Used mainly for removal of large foreign bodies Diminished utilization since advent of flexible fiber optic bronchoscope
34
What is a Flexible fiberoptic bronchoscope?
Consists of 4 channels: 2 that provide a light source One vision channel One open channel that accommodates instruments of allows administration of an anesthetic or oxygen
35
What is the pre-procedure for a bronchoscopy and laryngoscopy
NPO for 4-8 hours prior Perform thorough mouth care Remove dentures, glasses, and contacts Administer pre-procedures meds Tell patient not to swallow the lido spray
36
What are the pre-procedure meds given to the patient undergoing a bronchoscopy or laryngoscopy?
Atropine = counteracts Vaal stimulation Benzodiazepines = for anxiety Anticholinergics = reduce secretions
37
What are the contraindications for a bronchoscopy?
Patients with hyper apnea and severe shortness of breath who cannot tolerate interruption of high-flow oxygen Can be performed through O2 mask or endotracheal tube so that the patient can receive oxygen as needed Patients with severe tracheal stenosis because it may be difficult to pass the scope through
38
What is the procedure for a bronchoscopy?
1) Nasopharynx/oropharynx is anesthetize with lido spray before insertion of bronchoscope 2) Patient is in sitting or supine position and scope is inserted into nose or mouth and into pharynx 3) Scope passes through larynx and past glottis where more lido spray is that administered into trachea to minimize the cough reflex 4) Scope is then passed farther into trachea, bronchi, 1st and 2snd geernation bronchioles for exam of bronchial tree 5) Biopsy specimens are taken if needed and if being performed to pulmonary hygiene, each bronchus is aspirated until clear
39
What will occur after the bronchoscopy or laryngoscopy is performed?
Patient is NPO until tracheobronchial anesthesia has worn off and the gag reflex has returned Observe sputum for hemorrhage if biopsies were taken = small amounts are normal but large amounts can cause chemical pneumonitis Observe for evidence of impaired respiration or laryngspasm Emergency resuscitation equipment should be readily available Low grade fever is normal within 24 hours after procedure If tumor is suspected, collect post bronschopy sputum sample for a cytology determination Warm saline gargles and lozenges help with sore throat Chest x-ray can be ordered to identify a pneumothorax if a deep biopsy was obtained
40
What is a laryngoscopy?
Most commonly performed by an ENT surgeon Often uses a short bronchoscope to allow inspection of the larynx and perilaryngeal structures Endoscopic laryngoscopes is attached to camera that projects image of vocal cords onto a monitor
41
What are the diagnostic indications for a laryngoscopy?
Identifies: ``` Cancers Polyps Inflammation Infections of structures Vocal cord motion can be evaluated ```
42
What are the therapeutic indications for a laryngoscopy?
Assist with endotracheal intubation Anesthesiologists use this to visualize vocal cords to incubate for general anesthesia
43
What is the procedure for a laryngoscopy?
1) Oro-nasopharynx anesthetize with lido spray before insertion of bronchoscope 2) Patient is placed in sitting or supine position and scope inserted through the nose or mouth and into pharynx 3) Visualization of vocal cords is performed
44
What is a colposcopy?
Provides in Situ macroscopic examination of vagina and cervix with a colposcope Performed by physican, NP, or PA in 5-10 minutes Allows provider to see tiny areas of dysphasia, carcinoma in Situ, and invasive cancer
45
What is the colposcope?
Macroscope with light source and a magnifying lens
46
What are the diagnostic indications for a colposcopy?
``` Performed on patients with: Abnormal vaginal epithelial patterns Cervical lesions Suspicious Pap test results Women who were exposed to DES in uterine ``` Used to identify malignant and pre-malignant lesions of the vagina and cervix Biopsy specimens can be obtained
47
What are the therapeutic indications for Colposcopy?
Useful only in identifying a suspicious lesion and definitive diagnosis required biopsy of tissue A biopsy performed without a colposcopy may not necessarily represent lesions’ true pathological condition
48
What is eliminated with experienced colposcopist performing a colposcopy?
The need for 90% of cone biopsies
49
When would a patient still need to have a cone biopsy performed even after having a colposcopy?
When colposcopy and endocervical curettage do not explain problem or match the cytologic findings of the Pap test within one grade Entire transformation zone (b/n squamous and columnar epithelium) is not seen Lesions extends up the cervical canal beyond the vision of the colposcope
50
What is the contraindication for a colposcopy?
patients with heavy menstrual flow
51
How is the colposcopy performed?
1) Patient is placed in lithotomy position and vaginal speculum used to expose vagina and cervix 2) An endocervical curettage performed to minimize any dropping of endocervical cells onto external surface of the cervix 3) . After cervix is sampled for cytologic findings, it is cleansed with a 3% acetic acid solution to remove excess mucus and cellular debris 4) The colposcopy is focused on the cervix which is then carefully examined 5) Photographs of the cervix may be taken and usually the entire lesion is visualized and biopsy is performed
52
What is the post-procedure for a colposcopy?
1) Cervix cleaned with normal saline solution and hemostasis ensured 2) vaginal bleeding is not unusual if biopsy specimens were taken 3) Tell patient that until healing of biopsy is confirmed they must abstain of intercourse and do not insert anything except a tampon into the vagina
53
What is a cystoscopy?
Endoscopic procedure that visualized bladder Diagnostic cystoscope can be done in urologists office in about 10 min. Flexible scope is used
54
What are the diagnostic indications for a cystoscopy?
Evaluate patients with suspected pathological conditioned involving the urethra, bladder, and lower ureters
55
What are the therapeutic indication for a cystoscopy?
Biopsy Transurethral resection of prostate (TURP) Transurethral resection of superficial bladder tumors Removal of ureteral and bladder calculi Retrograde cystoscopy Ureteral stent placement
56
What is performed prior to a cystoscopy?
Enema to clear bowels Have patient drink lots of fluids to ensure continuous flow of urine and minimize bacteria multiplication If procedure done under general anesthesia = NPO night before and IV fluids will be given, administer pre-procedure meds 1 hour before the procedure, and sedatives decrease spams of bladder sphincter
57
How is the cystoscopy performed?
1) Urethra anesthetize with anesthetic gel 2) Mild discomfort felt when scope passes through sphincter 3) When rigid scope used for diagnostic or therapetuc cystoscopy, general or spinal anesthesia is used 4) Performed in OR or in urologists office 5) Patient is placed in lithotomy position with feet in stirrups 6) External genitalia are cleansed with an antiseptic solution such as betadine 7) Bladder is distended with saline once scope is inserted
58
What occurs after a cytoscopy?
Patient should not walk/stand alone immediately after legs have been removed from stirrups Assess patients ability to void for at least 24 hours after procedure if patient is hospitalized = urinary retention may be secondary to edema caused by instrumentation Not urine color = pink tinged is common and normal, but bright red or clots need to be reported to physician The first few voids after cytoscopy may have burning in urethra that is intense Encourage men to urinate while sitting to avoid a Vaal reaction related to severe dysuria
59
Why and when would antibiotics be prescribed for a cytoscopy?
Occasionally ordered 1 day prior to and 3 days after cytoscopy in order to reduce incidence of bacteremia
60
What are potential complications of Cytoscopy?
Perforation of bladder of ureters Sepsis Hematuria Urinary retention
61
What is an endoscopic retrograde cholangiopancreatography?
Endoscopic test which is usually performed in 1 hour Performed by physician trained in endoscopy X-ray images interpreted by radiologist Combines endoscopy and fluoroscopy to diagnose and treat certain problems of the biliary or pancreatic ductal systems
62
What are the diagnostic indications for ERCP?
Evaluation of jaundiced patient via tissue and brushing of common bile duct Evaluation of patients with unexplained upper abdominal pain/pancreatitis Manometric studies of sphincter of Oddi/pancreatobiliar ducts which are used to investigate unusual functional abnormalities of these structures
63
What are the therapeutic indications of ERCP?
Incision of papillary muscle in ampulla of Vater can be performed through scope so common bile duct gallstones can be removed Stents can be placed through strictured bile ducts allows bile of jaundiced patients to be normally drained
64
What is the pre-procedure for ECRP?
NPO night before Tell patient no discomfort associated with dye injection but gagging may occur during initial introduction of scope into oral pharynx Administer appropriate premedication if ordered
65
What are the two medications possibly administered to patient before ECRP?
Versed and atropine
66
What is the ECRP procedure?
1) KUB x-ray taken to ensure barium from previous studies will not obscure visualization of bile duct 2) Patient is placed in supine position or on left side 3) Patient usually sedated with narcotic and sedative/hypnotic 4) Phyarynx sprayed with lido to inactivate gag reflex andt to lesssion discomfort caused by passage of scope 5) Side viewing fiberoptic duodenoscope insertedt through oropharynx and passed through esophagus and stomach and into duodenum 6) IV glucagon often administered to minimize spasm of duodenum and improve visualization of ampulla of Vater 7) Simethicone may be instilled to diminish any bubbles present that may inhibit visualization of ampulla 8) Through accessory lumen within scope, small catheter is passed through ampulla and into common bile or pancreatic ducts 9) . Radiographic dye is injected and Xray images are taken
67
What are the potential complications from ERCP?
Perforation of stomach, esophagus, and duodenum Gram negative sepsis which usually occurs in patients with obstructive jaundice Pancreatitis resulting from pressure of the dye injection Aspiration of gastric contents Respiratory arrest as a results of oversedation
68
What are the post-procedure guidelines for ERCP?
NPO until gag reflex returns Observe for development of abdominal pain and N/V which may indicate onset of ERCP-induced pancreatitis Monitor for signs of respiratory depression Resuscitative equipment should be present Assess the patient for signs and symptoms of septicemia which indicates the onset of ECRP induced cholangitis
69
What is Esophagogastroduodenoscopy (EGD) Gastroscopy?
Performed in endoscopy suite by physician in 20-30 min. Used to visualize lumen of esophagus, stomach, and duodenum ``` Used to evaluate patients with: Dysphagia Weight loss Early satiety Upper abdominal pain Ulcer symptoms of dyspepsia Alcoholism and suspected varices ```
70
What would require an EGD to be performed?
If the results of a patients barium swallow or upper GI Xray study si suggestive of a pathological condition
71
What are the diagnostic indications for gastroscopy?
Evaluate esophagus, stomach, and duodenum Visualize and perform biopsy of tissue in upper small intestinal tract Abnormalities of small intestine such as AV malformations, Tumors, celiac disease, and ulceration
72
What are therapeutic indications for gastroscopy?
If patient is bleeding Control active GI tract bleeding by electrocoagulation, laser coagulation, or injection of sclerosis agents such as alcohol Benign and malignant strictures can be dilated to reestablish patently of the upper GI tract Biliary stents and percutaneous gastroscopy tube can be placed
73
What is the pre-procedure for Gastroscopy?
NPO after midnight Thorough oral hygiene as tube will be passed through mouth Anesthetize throat with lido spray to depress gag reflex Dentures and eyewear need to be removed
74
What is the procedure for Gastroscopy?
1) Patient is placed in LEFT LATERAL DECUBITUS position 2) patient is usually sedated to minimize anxiety and allows “light” sleep 3) Endoscope is passed through mouth and into esophagus 4) Air insufflated to dissent upper GI tract for adequate visualization 5) Esophagus, stomach, and duodenum are evaluated 6) Upper small bowel is visualized and biopsy is performed if needed 7) At completion of direct inspection and surgery, excess air and GI tract secretions are aspirated through scope
75
What is the post procedure for Gastroscopy?
Patient is NPO until tracheobronchial anesthesia has worn off and gag reflex has returned Monitor for signs of respiratory depression Resuscitative equipment should be present Sedation may cause some retrograde and antegrade amnesia for a few hours
76
What is a hysteroscopy?
Endoscopic test usually performed by Gyno in OR Takes approx. 30 min. For a simple hysteroscopy Provides direct visualization of uterine cavity by inserting hysteroscope through vagina and cervix and into uterus Can be used to identify cause of abnormal uterine bleeding, infertility, and repeat miscarriages
77
What are the diagnostic indications for Hysteroscopy?
Uterine adhesions Polyps Fibroids Detect displaced intrauterine devices (IUDs)
78
What are the therapeutic indications of hysteroscopy?
Excise uterine adhesions and small fibroids Endometrial ablation
79
What is the pre-procedure for Hysteroscopy?
NPO for 8 hours prior Schedule the procedure after menstrual bleeding has ceased and before ovulation because it allows for better visualization of the inside of the uterus and avoids damage to a newly formed pregnancy Patient receiving local anesthesia or only light sedation may feel some cramping during procedure Generally not a painful procedure
80
What is the procedure for a hysteroscopy?
1) Performed in OR or in the doctor’s office 2) Local, regional, general, or no anesthesia may be used 3) Patient is placed in LITHOTOMY position 4) Vaginal area is cleansed with antiseptic solution 5) Cervix may be dilated before this procedure 6) . Hysteroscope inserted through vagina and cervix an into uterus and liquid or gas released to expand uterus for better visualization
81
What is the post-procedure for Hysteroscopy?
Slight vaginal bleeding and cramps for a day or two after procedure are normal ``` Reports signs of: Fever Severe abdominal pain Heavy vaginal discharge/bleeding Discomfort from gas inserted during hysteroscopy or laparoscopy usually < 24 hours ```
82
What is a laparoscopy?
Used to directly visualize abdominal and pelvic organs when pathological condition is suspected Performed by surgeon Patient is under general anesthesia High difficulty Multiple, small incisions High expense in OR Low expense of Post-op care High post-op mobility Minimal-moderate post-op pain 1-2 days of post-op hospitalization Days for pos-op recovery 1 week until patient can return to work
83
What are the diagnostic indications for laparoscopy?
Acute/chronic abdominal or pelvic pain Suspected advanced cancer Abdominal mass of uncertain cause Endometriosis Ectopic pregnancy Ruptured ovarian cyst Salpingitis
84
What are the therapeutic indications for Laparoscopy?
Cholecystectomy Hiatal hernia repair Inguinal hernia repair Video-assisted colectomy
85
What is the pre-procedure for laparoscopy?
NPO after midnight Open laparotomy may be required so be sure the patient is aware of that Shave abdomen prior to incision
86
What are the contraindications for a laparoscopy?
Patients who have had multiple abdominal surgical procedures because of adhesions Patients with suspected intraabdominal hemorrhage because visualization through scope can be obscured by blood
87
What is the laparoscopy procedure?
1) Patient is initially placed in supine position 2) After abdominal skin cleansed, blunt tipped needle inserted through small incision in periumbilical area and into peritoneal cavity or a slightly larger incision is placed in skin and abdominal wall is separated under direct vision 3) Peritoneal cavity is entered, adhesions can be listed under direct vision 4) Peritoneal cavity is filled with 2-3L of CO2 to separate abdominal wall from intraabdominal viscera 5) Laparoscope inserted through trochanter to examine abdomen 6) Other Trojans can be placed as conduits for other instrumentation 7) After procedure is complete, laparoscope is removed and CO2 is allowed to escape 8) Incision(s) closed with skin stitches and covered with dressing
88
What is the post procedure for laparoscopy?
Assess for signs of bleeding: Tachycardia Hypotension And perforated viscus: Abdominal tenderness/guarding Decreased bowel sounds Patient may complain of shoulder or subcostal discomfort from diaphragmatic irritation caused by pneumoperitoneum
89
What is an open laparotomy?
Moderately difficult One large incision Moderate expense of equipment of OR High expense of Post-op care Low Post-op mobility High post-op pain 4-10 days of post-op hospitalization Week for recovery 6 weeks until patient can return to work
90
What is an upper GI endoscopy?
Test used to visualize lumen of Esophagus, stomach, and duodenum
91
What are the diagnostic Indications for an upper GI endoscopy?
``` Evaluates patients with: Dysphagia Weight loss Early satiety Upper abdominal pain Dyspepsia Suspected varices Abnormal results of barium swallow or upper GI Xray ```
92
What are the contraindications for an upper GI endoscopy?
Severe upper GI tract bleeding Esophageal Diverticula because the scope can fall into the diverticulum and perforate esophageal wall Suspected perforation because it can be worsened by the insufflation of pressurized air Recent upper GI tract surgery because anastomoses may not be able to withstand pressure of air insufflation
93
What is the procedure for an upper GI endoscopy?
1) Patient is placed on endoscopy table in left lateral decubitus position 2) Throat topically anesthetized with lido 3) Endoscope is “gently” passed through mouth and into esophagus 4) Air is insufflated to distend upper GI tract 5) Esophagus, stomach, and duodenum are evaluated 6) Upper small bowel visualized and biopsy is performed as needed 7) At the completion of the direct inspection and surgery, the excess air and GI tract secretions are aspirated through the scope
94
What occurs after an upper GI endoscopy?
NPO until tracheobronchial anesthesia has worn off and the gag reflex has returned Monitor for signs of respiratory depression Resuscitative equipment should be present Patient may complain of shoulder or subcostal discomfort from diaphragmatic irritation caused by pneumoperitoneum Sedation may cause some retrograde and antegrade amnesia for few hours