deck 4 Flashcards
behavioral change shown to improve function significantly with heart fialure
discontinuing alcohol
management of refractory edema
add second diuretic (metalozone) - spironolactone can be used but usually only considered for NYHA class III or IV patients
only evidence for dual ARB + ACE inhibitor therapy
can reduce hospitalizations in CHF patients
strongest RF for developing alzheimer’s
increasing age, FH second
early signs of alzheimer’s
- memory disturbance, word-finding difficulty, decreased ability to recognize and draw complex figures, loss of ability to calculate.
- social behavior remains strikingly preserved until late in the illness
evidence for cholinesterase inhibitors in AD?
- associated with modest improvements in cognition, behavior, activities of daily living, and global measurements of functioning. However, they do not change the progression of neurodegeneration.
drug shown to have statistically significant benefit in advanced cases of dementia?
memantine
screening test used for diabetes?
fasting glucose
diabetes diagnosis
Two separate random glucose measurements more than 200 mg/dL with classic signs of diabetes (polydipsia, polyuria, polyphagia, weight loss), a fasting glucose greater than 126 mg/dL, or a glucose reading greater than 200 mg/dL 2 hours after a 75-g glucose load.
leading cause of blindness in the US
diabetic retinopathy
diabetic retinopathy risk correlated with…
increasing hbA1c
indication for ACE inhibitor in diabets
all diabetics with systolic BP greater than 100
ACE inhibitors and creatinine?
can be used irrespective of creatinine levels
effect of fibrates
lower triglycerides and raise HDL, but have minimal effects on LDL.
diet changes in diabetics?
Glycemic control is dependent on the total caloric intake, not the type of calorie taken in. Low-carbohydrate and high-protein diets have not been shown to improve glucose control more than weight loss from other methods. Sucrose does not need to be eliminated, but it may raise blood sugar more quickly after ingestion. Formal dietary programs are not more likely to produce long-term sustainable results unless exercise is a large component of the plan. Increased fiber does improve glycemic control.
oral therapy for type 2 diabetes
No evidence supports changing sulfonylureas when one is not adequately controlling glucose levels. Biguanides act to decrease glucose output from the liver, and can decrease hemoglobin A1C by 1.5% to 2%. However, biguanides should not be used if creatinine is higher than 1.5 mg/dL. Meglitinides increase insulin secretion and should only be taken before meals. They can reduce the hemoglobin A1C by 0.5% to 2% and are most valuable if fasting sugar is adequate, but postprandial sugars are high. Since they increase insulin levels, they are more effective when used in combination with a medication that has a different mechanism of action. They are excreted in the liver, therefore are safe in renal failure. Thiazolidinediones decrease insulin resistance and are an excellent choice for those with insulin insensitivity. α-Glucosidase inhibitors inhibit the absorption of carbohydrates in the gut and can decrease the hemoglobin A1C by 0.7% to 1%. They should be avoided if creatinine more than 2.0 mg/dL.
GLP-1 agonists mechanism
gut-derived incretin hormone that stimulates insulin and suppresses glucagon secretion, delays gastric emptying, and reduces appetite and food intake
DPP-4 inhibitor mechanism
prolongs the activity of endogenously released GLP-1
NPH (neural protamine hadedorn) length of action
10-20 hours
long-acting insulin preparations
lantus and levemir (24 hours)