DKA Flashcards

1
Q

How does sodium decrease in relation to glucose?

A

Every 100 glucose increase is 1.6 Na decrease

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2
Q

Why do ketone levels elevate with resolution?

A

Nitroprusside test detects acetoacetate and acetate. More is formed towards resolution.

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3
Q

Fluid replacement regimen

A

2 to 3 L first 3 hours (10 to 20 ml/kg/hr) pNSS
250to 500 mL per hour 0.45NSS
150 to 250 mL per hour D50.45NSS once glucose 250

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4
Q

Insulin dose

A
  1. 1 U/kg then 0.1U/kg/hr as drip

0. 02 to 0.1 U/kg/hr once CBG 200 to 250 and add glucose

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5
Q

Cut off for bicarbonate

A

PH < 7.0

50 mmol HCO3 in 100 mL with 10 meq Kl

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6
Q

Cut off for phosphate supplementation

A

Phosphate less than 0.32

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7
Q

Hydration in HHS

A

9 to 10 L replaced in 1 to 2 days.
200 to 300 mL per hour of hypotonic solution
0.45 NSS then D5W

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8
Q

Glycemic goals for hospitalized patients

A

140 to 180 in critically ill

110 to 140 in selected patients

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9
Q

What to remember before discontinuing insulin IV

A

Overlap 2 to 4 hours with long acting insulin

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10
Q

Insulin adjustment for individuals

A

1U per 50 mg/dL for thin

2U per 50 mg/dL for fat

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11
Q

TPN and insulin

A

TPN increases insulin requirements

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12
Q

Steroids and diabetes

A

Steroid-induced diabetes due to decreased glucose utilization.
Oral agents if less than 200.

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13
Q

Reproductive capacity in people with DM

A

Normal

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14
Q

Glucose is a (blank) at high doses in pregnancy?

A

Teratogen

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15
Q

Oral hypoglycemics in pregnancy

A

Glyburide and metformin

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16
Q

Risk for fetal malformations in pregnant DM is?

A

4 to 10x a normal individual

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17
Q

Pathophysiology of lipodystrophy DM

A

Decreased leptin and increased insulin resistance with acanthosis nigricans, hypertriglyceridemia and hepatic steatosis

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18
Q

Leading contributor to CHD

A

Diabetes

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19
Q

Microvascular DM complications

A

Retinopathy, neuropathy, and nephropathy

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20
Q

Macrovascular complications of DM

A

CHD
PAD
CVD

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21
Q

CHD rate increased by this much if you have DM

A

2 to 4 times

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22
Q

Trial comparing standard and intensive glycemic control in diabetes

A

Diabetes Control and Complications Trial

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23
Q

Results of DCCT

A

HbA1c 7.3% intensive
9.1% conventional

Intensive higher risk of hypoglycemia and weight gain

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24
Q

Follow up of 30 years after DCCT

A

Epidemiology of Diabetes Intervention and Complications or EDIC

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25
More than 5000 individuals with more than 10 years of DM
UK Prospective Diabetes Study
26
Comparison groups in UKPDS
Insulin, SU and metformin vs. conventional
27
UKPDS HbA1c microvascular complication reduction
1 unit HbA1c to 35% risk reduction
28
UKPDS BP guidelines
Reduce moderately to lower micro and macrovascular rates
29
Japanese study showing reduced microvascular complications
Kumamoto study
30
Phenomenon where early glycemic control affects later life
Metabolic memory or legacy effect
31
Hypothesis for DM complications
1. Epigenetic 2. Advance glycosylation end products (pentosidine, glucosapene and carboxymethyllysine) 3. Aldose reductase sorbitol pathway 4. Diacylglycerol-fibronectin 5. Altered glycosylation of proteins
32
Features of nonproliferative DR
Retinal microaneurysms Blot hemorrhages Cotton wool spots
33
Hallmark of PDR
Neovascularization
34
Predictors of retinopathy in DM
Duration of DM | Degree of glycemic control
35
Most effective treatment for DRet?
Prevention
36
DRet may transiently worsen in first (blank) of glycemic control
6 to 12 months
37
Drug that reduces progression of retinopathy
Fenofibrate
38
Recommendation for eye exam in diabetics
Routine undilated eye exam not recommended. Refer to Ophtha.
39
Aspirin and DRet
No effect
40
Leading cause of CKD, ESRD
DNeph
41
Associated with increased risk of CVD in DM patients
Albuminuria
42
Risk factors for DNeph
Family history and race
43
First years of DNeph
Glomerular hyperperfusion and renal hypertrophy with increased GFR
44
Define albuminuria
Spot albumin to creatinine ratio > 30 mg/g
45
GFR cut-off for DNeph
60
46
Type 2 DM neohropathy differences with type 1
1. Albuminuria on diagnosis 2. Hypertension 3. Less association with albuminuria 4. Albuminuria from HTN, CHF, prostate disease or infection
47
Screening for albuminuria
Five years after DM1 | Immediately after DM2
48
Optimal therapy for diabetic nephropathy
Prevention
49
Slowing progression of albuminuria by
1. Glycemic control 2. BP control 3. ACEI or ARB
50
Glucose medications contraindicated in ESRD
Metformin | Sulfonylureas
51
BP targets for DNeph
<140/90 diabetics | <130/80 risk for CVD or CKD progression
52
When to refer DNeph to renal
GFR less than 30 and albuminuria
53
Referral for transplant in DNeph patient
GFR < 20
54
Leading cause of death in diabetics with nephropathy and hyperlipidemia
Complications of atherosclerosis
55
Hypotension in DNeph patients
Autonomic nephropathy loss of reflex tachycardia Difficult vascular access retinopathy
56
Type of neuropathy in DM
Distal symmetric polyneuropathy
57
Risk factors for DNeuro
``` BMI Smoking Duration Glycemic control CVD Elevated TG HTN ```
58
Most common DNeuro
Distal symmetric polyneuropathy
59
Character of distal symmetric polyneuropathy
``` Lower extremities At rest At night Pain Loss of ankle tendon reflezes Abnormal position sense Foot drop ```
60
Aim of DNeuro screening
Identify loss of protective sensation
61
Features of cardiovascular autonomic neuropathy
Decreased heart rate variability resting tachycardia Orthostatic hypotension Sudden death
62
Other autonomic problems of DM
``` Gastroparesis Bladder emptying Hyperhidrosis of UE Anhidrosis of LE Hypoglycemia unawareness due to counterregulatory hormone release ```
63
Most common mononeuropathy of DM
Third CN diplopia with ptosis and ophthalmoplegia