Lecture 4: Kidney Disease Flashcards
Uremic syndrome: cardiovascular symptoms (4)
HTN
Arrhythmia
CHF
Pericarditis
Uremic syndrome: neurological symptoms (8)
Fatigue Impaired cognition Irritability/behavioral changes Drowsiness Vision changes Peripheral neuropathy Encephalopathy Coma
Uremic syndrome: GI symptoms (5)
Stomatitis Anorexia Nausea Vomiting GI bleeding
Uremic syndrome: pulmonary symptoms (2)
Cough
Hemoptysis
Uremic syndrome: hematologic/ immunologic/ dermatologic symptoms (6)
Anemia Immunodeficiency Bruising Pallor Hyperpigmentation Uremic frost
Uremic syndrome: musculoskeletal symptoms (2)
Arthralgia
Muscle wasting
3 risks to consider when initiating dental management
Anemia/excessive bleeding
RIsk of infection
Medication intolerance
6 lab tests to order prior to dental treatment if it will be carried out on an outpatient basis
CBC (Hb,Hct) BUN Cr platelet count Routine hep B surf Ag LFT (PT; PTT)
4 points of treatment during dental procedure if it will be carried out on an outpatient basis
Continuous blood pressure monitoring
Ascertain anesthesia (decrease stress)
Meticulous attention to good surgical technique to decrease risk of excessive bleeding or infection
Let patient to stand and walk if long procedure
5 medical considerations for a patient on dialysis
Blood tests
Treat on nondialysis day
Endarteritis – source of bacteremia; nephrologist consult to be considered for Ab prophy (for hemoaccess site)
Avoid blood pressure cuff on the side of arteriovenous fistula (infection and clotting)
Hemolysis secondary to hemodialysis and lack of erythropoetin production
6 drugs that are mainly excreted by the kidney
Tetracycline Aminoglycosides Peniclline Cephalosporins Acyclovir Ketoconazole
Pharmacological considerations for pain control
Acetaminophen may be safer than ASA, NSAIDs
NSAIDs –> Nephrotoxicity (avoid in renal insufficiency NOT in ESRD; May cause bleeding or fluid retention)
Pharmacological considerations for anaesthesia
Vasoconstriction should be used with caution ~ underlying HTN
Pharmacological considerations for narcotics
Primarily metabolized in liver
With caution due to prolong effect – avoided with uremia
Avoid meperidine – active metabolites can accumulate leading to seizure
When is clindamycin used?
Abscesses
When is metronidazole used?
Periodontal disease
Antibiotics to avoid (2)
Aminoglycoside (streptomycin) and polymyxin B
Antibiotics to be careful with (3)
Tetracyclin
Cephalosporine
Penicillin (in case of potassium content in setting of hyperkalemia – need dialysis)
Analgesics considerations (2 points)
Avoid long term NSAIDs in CKD Avoid narcotics (can cause prolonged sedation and resp. depression)
At what GFR is drug dosage adjustment likely?
<60
Antibiotics considerations (30
Aggressively manage orofacial infections with culture and sensitivity testing and antibiotics
Consider hospitalization for severe infections and major procedures
Loading dose may be required for concurrent infection and CKD
Drugs not requiring dosage adjustment
Local anaesthesia
Single-dose benzodiazepine (anti-anxiety)
How to reduce risk of emergencies
Avoid invasive procedures and long appointments if CKD stage 3 or higher or not well-controlled
6 oral manifestations
Increased attention for orofacial infections
Dry mouth; parotitis; pallor
Bad odor; metallic taste
Uremic stomatitis
Uremic frost
Renal osteodystrophy (Compensatory hyperparathyroidism)
Define petechiae
Disrupted blood vessels in the setting of anemia (looks like red dots)
4 early signs and symptoms of hypertension
Elevated BP readings
Headache
Dizziness
Tinnitus
6 avanced signs and symptoms of HTN
Angina pectoris CHF Rupture and hemorrhage of retinal arterioles Dementia Renal failure Encephalopathy
4 organs involved in the late signs and symptoms of HTN
Eyes
Heart
Kidneys
Brain
5 classes of drugs for treatment of HTN
Thiazide diuretics ACE inhibitors ARBs Beta blockers Calcium channel blockers
2 oral manifestations that can arise with the use of thiazide diuretics
Dry mouth
Lichenoid reactions
2 medical considerations with the use of thiazide diuretics
Orthostatic hypotension
Avoid prolonged NSAIDs (may reduce anti-HTN effects)
Vasoconstrictor interactions with the use of non-selective beta blockers
Potential BP increase (max 0.036 mg epinephrine)
Avoid levonordefrine
2 oral manifestations of non-selective beta blockers
Taste changes
Lichenoid reactions
Medical consideration with the use of non-selective beta blockers
Avoid prolonged NSAIDs (may reduce anti-HTN effects)
Vasoconstrictor interactions with the use of combined alpha and beta blockers
Both B1 and B2 adrenergic receptor site blocked = potential adverse effects, but alpha receptor blockade compensates –> unlikely
Oral manifestations of combined alpha and beta blockers
Taste changes
2 medical considerations with the use of combined alpha and beta blockers
Orthostatic hypotension
Avoid prolonged NSAIDs (may reduce anti-HTN effects)
3 oral manifestations of ACE inhibitors
Angioedema of face, lips, tongue
Taste changes
Oral burning
2 medical considerations with the use of ACE inhibitors
Orthostatic hypotension
Avoid prolonged NSAIDs (may reduce anti-HTN effects)
Oral manifestations of ARBs
Angioedema of face, lips, tongue
Medical considerations with the use of ARBs
Orthostatic hypotension
Oral manifestations of calcium channel blockers
Gingival hyperplasia
2 oral manifestations of alpha1-adrenergic blockers
Dry mouth
Taste changes
Other medical considerations with the use of alpha1-adrenergic blockers
Orthostatic hypotension
Avoid prolonged NSAIDs (may reduce anti-HTN effects)
2 oral manifestations of central a2-adrenergic blockers and other centrally acting drugs
Dry mouth
Taste changes
Other medical considerations with the use of central a2-adrenergic blockers and other centrally acting drugs
Orthostatic hypotension
2 oral manifestations of direct vasodilators
Lupus-like oral skin lesions
Lymphadenopathy
2 other medical considerations with the use of direct vasodilators
Orthostatic hypotension
Avoid prolonged NSAIDs (may reduce anti-HTN effects)
At what BP do we defer elective treatment and refer to a physician ASAP? Give one reason?
> or = to 180/100
Vasoconstrictors, i.e. epinephrine, not advised in patients with uncontrolled HTN
4 points of epinephrine usage in the event of necessary urgent treatment and uncontrolled HTN
Will be dictated by the situation
Modest doses (e.g., one or two carpules)
Care is taken to avoid inadvertent intravascular injection
Consultation with the patient’s physician is advisable
2 methods of vasoconstrictor application that should not e used in a patient with HTN
Topical vasoconstrictors generally should not be used for local hemostasis
Avoid using gingival retraction cord containing epinephrine
3 alternatives to epinephrine for anesthesia in a patient with HTN
Tetrahydrozoline
Oxymetazoline
Phenylephrine
3 types of drugs that lead to the development of orthostatic hypotension and potentiate the actions of anxiolytic and sedative drugs
Alpha blockers, alpha-beta blockers, and diuretics
2 drugs that exacerbate the hypotensive effect of calcium channel blockers
Erythromycin and clarithromycin