Blood Pressure Flashcards

1
Q

The higher the BP, the greater the chance of:

A. Myocardial infarction
B. Cerebral vascular attack
C. Heart failure
D. Kidney disease
E. All of the above
A

E. All of the above

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2
Q

Hypertension is also known as the “____”. Why?

A

“Silent killer” due to few symptoms

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3
Q

Characterized by severe headaches, nausea or vomiting, confusion, changes in vision, and nosebleeds

A

Severe acute hypertension

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4
Q

What are the risk factors for elevated blood pressure?

A

Age, race, weight, family history

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5
Q

Variables affecting BP

A
  1. Diet/exercise
  2. Anxiety/stress
  3. Posture
  4. Diurnal variation
  5. Bladder distension
  6. Tobacco
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6
Q

What is essential hypertension?

A

When the cause is unknown. This is the majority of HTN incidence: 90-95%

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7
Q

When taking blood pressure, how many measurements should you take and how long between the measurements should you wait?

A

Take 2 blood pressure measurements at least 2 minutes apart

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8
Q

Which reading is the more important finding related to stroke & heart attack?

A

The systolic reading

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9
Q

What is normal BP?

A

Systolic: <120
AND
Diastolic: <80

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10
Q

What is elevated BP?

A

Systolic: 120 - 129
AND
Diastolic: <80

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11
Q

What blood pressures would classify stage 1 hypertension?

A

Systolic: 130 - 139
OR
Diastolic: 80 - 89

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12
Q

What blood pressures would classify stage 2 hypertension?

A

Systolic: > or equal to 140 OR
Diastolic: > or equal to 90

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13
Q

How would you categorize the following BP measurement: 122/79?

A

Systolic is between 120 - 129, which is considered elevated. Diastolic is 79 which is considered normal.

BP is elevated.

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14
Q

How would you categorize the following BP measurement: 116/86?

A

Systolic is < 120 which is normal. Diastolic is between 80 - 90.

BP is stage 1 hypertension.

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15
Q

True or false:
Individuals with systolic blood pressure (SBP) and diastolic blood pressure (DBP) in 2 categories should be designated to the higher BP category.

A

True

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16
Q

Not all BPs that are elevated are bad.

Give an example of when the above is true.

A

People who have had a stroke. We want them to have good oxygen getting to their brain (i.e., good perfusion), and an elevated BP does that.

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17
Q

What are the two branches of Hypertensive Crisis?

A
  1. Hypertensive urgencies

2. Hypertensive emergencies

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18
Q

What distinguishes a hypertensive urgency from a hypertensive emergency?

A

In hypertensive emergencies, associated signs or symptoms of target organ damage (TOD) is present.

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19
Q

What characterizes hypertensive urgencies?

A

Upper level of stage II HTN (>180/120) and ABSENCE of TOD

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20
Q

What characterizes hypertensive emergencies?

A

Upper level of stage II HTN (>180/120) and PRESENCE of TOD

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21
Q

Provide examples of target organ damage (TOD)

A

a. Acute ischemic or hemorrhagic stroke
b. Acute myocardial infarction
c. Acute heart failure
d. Acute renal failure
e. Papilledema
f. Cotton wool spots, hemorrhages, exudates
g. ***Vitreous hemorrhage

22
Q

What is papilledema?

A

The swelling of the optic nerve due to pressure build up in the head.

23
Q

If a patient answers “yes” to experiencing shortness of breath, dizziness, disorientation OR if you see papilledema, what is this considered?

A

Hypertension emergency. The patient is at imminent risk of a heart attack.

24
Q

You are seeing a patient and their BP reading is >180/110 mmHg.

What type of HTN is this considered and what treatment timeline do you provide?

A

Systolic equal to or greater than 140 OR diastolic equal to or > 90 is considered stage 2 hypertension (severe HTN).

The treatment timeline would be see PCP to get BP under control within 3 to 7 days.

25
You are seeing a patient and their BP reading is > 180/120 mmHg. The patient denies headaches, dyspnea, and you do not see peripheral edema. What type of HTN is this considered and what treatment timeline do you provide?
BP > 180/120 is considered a hypertensive crises. This patient denies symptoms associated with target organ damage, and there are no signs of it either. This is a hypertensive urgency. The treatment timeline would be to consult PCP and get BP under control within 24-72 hours.
26
You are seeing a patient and their BP reading is > 180/120mmHg. The patient complains of chest pain, severe dyspnea, headaches, and you observe papilledema. What type of HTN is this considered and what treatment timeline do you provide?
BP > 180/120 is considered a hypertensive crises. This patient confirms symptoms associated with target organ damage, and there are signs of papilledema. This is a hypertensive emergency. The treatment timeline would be go to the ER - emergent care needed as patient needs BP reduced immediately.
27
I have a patient with BP in clinic SBP > 180 or DBP > 120. What do I do next?
Ensure you check with manual (automatic BP cuff alone is NOT acceptable). Check manual BP a 2nd time to verify.
28
I have a patient with BP in clinic SBP > 180 or DBP > 120. What symptoms do I check/ask for?
+/- headaches +/- dyspnea (difficult/labored breathing) +/- peripheral edema +/- chest pain +/- neurological deficit (altered state/disorientation)
29
I have a patient with BP in clinic SBP > 180 or DBP > 120. What signs do I look for?
+/- papilledema (*) +/- cotton wool spots +/- intraretinal hemorrhages Note: If the patient confirms any symptoms OR if papilledema is seen, it is a hypertension emergency.
30
How is BP documented?
* Systolic/diastolic * Time * Right arm or left arm * Posture: sitting, standing, or lying down * Location (arm, wrist) * Automatic/manual For example: 118/75mmHg 11:30 AM, RAS manual - RAS = Right Arm Sitting
31
Ventricular contraction
Systole
32
Ventricular relaxation
Diastole
33
Heart sounds: "Lub" Describe what is happening.
The AV valves are closing. | This is the first sound heard.
34
Heart sound: "Dub" Describe what is happening.
The semilunar valves are closing. | This is the second sound heard.
35
What are the sounds heard during the measurement of blood pressure called?
Korotkoff sounds
36
Are Korotkoff sounds the same as 'lub' and 'dub'?
No.
37
Explain phase 1 of Korotkoff sounds
Phase 1 = systolic pressure * Onset of tapping * The sound is the flow of blood from under the narrowed artery under the cuff to the wider artery distal to the cuff
38
Explain phase 2 of Korotkoff sounds
* Murmur/swishing | * Arterial wall vibration
39
Explain phase 3 of Korotkoff sounds
* High pitched tapping/knocking sound
40
Explain phase 4 of Korotkoff sounds
* Muffling/swishing of sound
41
Explain phase 5 of Korotkoff sounds
* Disappearance of sound = diastolic pressure | - 2mm below last sound heard
42
What are some techniques you can employ to get enhancement of Korotkoff sounds?
1. Raise the arm before inflating the cuff, then brining the arm to the usual position to continue BP measurement. - This drains the venous blood from the forearm. 2. Having the patient make a fist 8-10x after cuff inflation and before deflation 3. Inflate the cuff rapidly - The veins are cut off first
43
Describe proper technique in taking BP.
1. Select the proper cuff size 2. Inflate the cuff to 200 mmHg 3. Create a slow steady air release 4. Do not re-pump up the cuff 1/2 way down 5. Record - Time - Arm - Body position
44
What is auscultatory gap?
Some patients (HTN) will have a sound-free period between phases 1 and 2 ``` 240 (phase 1, SBP) | | 220 . . (auscultatory gap) . | | (phases 2-5) | ```
45
How do we avoid an auscultatory gap?
* Palpate the radial pulse (by the thumb) while inflating the cuff until the pulse disappears - Note the pressure when this happens * Continue to inflate 30mmHg above this value * Deflate the cuff and note when the pulse returns (palpable systolic BP) and continue to deflate * Wait 15-30 seconds * Take the measurement in the usual manner but inflate the cuff 30mmHg above the palpable systolic BP
46
You are checking BPs manually and notice an auscultatory gap. You proceed to palpate the radial pulse. What do you do after?
Take a 2nd BP measurement manually, but this time inflate the cuff 30mmHg above the palpable systolic BP from the previous measurement.
47
BP Tips
* Let air out 2-3 mmHg/sec * Record in even numbers * Avoid bunching of clothing * Fully expose the upper arm * Support the forearm at the level of the heart
48
What is hypertension a disease of?
Of larger blood vessels
49
What does HTN result in?
* Occlusion/infarcts in vessels | * Hemorrhage/leakage onto retina
50
Ocular characteristics of hypertensive retinopathy
* Decrease in A/V ratio - From 0.7 to 0.4 * Change in vessel color due to wall thickening - Appearance of copper or silver vessels due to hardening * Arteries cross over veins (AV crossings) * Hemorrhages
51
What shape are ocular hemorrhages caused by HTN?
Flame shaped